Stainless Steel Serrated Flange Nuts – 304 & 316, DIN 6923

Stainless Steel Serrated Flange Nuts – 304 & 316 DIN 6923 Hexagon Flange Fasteners

Corrosion-Resistant Serrated Hex Flange Nuts for Industrial OEM Assemblies, Machinery, Equipment Brackets and Vibration-Exposed Connections

JUXIN FASTENERS supplies stainless steel serrated flange nuts for OEM manufacturers requiring corrosion-resistant threaded fasteners with an integral bearing flange and serrated contact surface.

The featured product combines a hexagon nut body with a circular flange containing teeth on its underside.

When properly tightened against a compatible mating material, the serrations engage the contact surface and provide resistance to nut rotation.

The integral flange distributes contact pressure over a larger area than a conventional hex nut of comparable size.

The original product specification identifies SUS304 and SUS316 stainless steel, natural metallic finish and DIN 6923 as the primary dimensional reference.

In the United States, these products are commonly described as Stainless Steel Serrated Flange Nuts, 18-8 Stainless Steel Serrated Flange Nuts and 316 Stainless Steel Serrated Flange Nuts.

Related international procurement terminology includes Metric Serrated Hex Flange Nuts, DIN 6923 Stainless Steel Flange Nuts, 

A2 Stainless Steel Flange Nuts and A4 Stainless Steel Flange Nuts, subject to the applicable material and mechanical property requirements.

JUXIN FASTENERS supports drawing-based inquiries for industrial OEMs, equipment manufacturers, Tier-1 and Tier-2 suppliers, mechanical engineers, manufacturing engineers, production managers and international purchasing teams.

Product Overview and Technical Specifications

Product Name: Stainless Steel Serrated Flange Nuts

American Product Name: Stainless Steel Serrated Flange Nuts

Alternative Product Names:

• Serrated Stainless Steel Hex Flange Nuts

• 18-8 Stainless Steel Serrated Flange Nuts

• 304 Stainless Steel Serrated Flange Nuts

• 316 Stainless Steel Serrated Flange Nuts

• Metric Stainless Steel Serrated Flange Nuts

• DIN 6923 Stainless Steel Flange Nuts

• Corrosion-Resistant Serrated Flange Nuts

• Toothed Stainless Steel Flange Nuts

• Serrated Collar Nuts

Original Material Options:

• SUS304 Stainless Steel

• SUS316 Stainless Steel

Related International Material Descriptions:

• 304-Type Stainless Steel

• 316-Type Stainless Steel

• A2 Stainless Steel, Where Applicable

• A4 Stainless Steel, Where Applicable

Surface Finish: Natural Stainless Steel Finish

Original Product Standard Reference: DIN 6923

Relevant Mechanical Property Standard: ISO 3506-2

Original Metric Size Range:

• M4

• M5

• M6

• M8

• M10

• M12

• M14

• M16

• M20

Product Configuration: Hexagon Nut with Integral Serrated Flange

Locking Principle: Serration Engagement with the Mating Surface

Built-In Thread Prevailing Torque: Not Specified

Manufacturing Basis: Approved Customer Engineering Drawings and Technical Specifications

Important Product Classification

The featured product is a serrated flange nut.

It is not a plain flange nut.

It is also not automatically an all-metal prevailing-torque locknut.

Its resistance to rotation depends primarily on contact between the serrated flange and the mating surface.

What Are Stainless Steel Serrated Flange Nuts?

Stainless steel serrated flange nuts are internally threaded hexagon fasteners with a circular flange and a toothed bearing surface.

The flange provides an enlarged contact area.

The serrations are designed to engage a compatible mating material during tightening.

This design may be useful in assemblies exposed to certain vibration conditions.

The stainless steel construction provides corrosion resistance for appropriate service environments.

Key Engineering Characteristics

• Hexagon wrenching body.

• Integral circular flange.

• Serrated bearing surface.

• Stainless steel construction.

• Natural metallic finish.

• Resistance to corrosion in suitable environments.

• Potential resistance to loosening through serration engagement.

• Compatibility with selected OEM mechanical assemblies.

The actual performance depends on the joint design, mating surface and installation procedure.

How Serrated Flange Nuts Resist Loosening

The underside of the flange contains raised teeth.

During tightening, the teeth contact the mating surface.

When the material and installation conditions are suitable, the serrations engage the surface and resist relative rotation.

Critical Engineering Factors

• Serration geometry.

• Serration height.

• Mating surface hardness.

• Surface coating.

• Applied clamp force.

• Installation torque.

• Joint vibration.

• Joint settlement.

• Surface deformation.

Serrated flange nuts are often described as vibration-resistant fasteners.

However, this does not mean that they provide guaranteed locking under every vibration condition.

The complete assembly must be evaluated.

Serrated Flange Nuts vs. Plain Flange Nuts

The main difference is the bearing surface.

Serrated Flange Nuts

Have teeth on the underside of the flange.

The teeth engage compatible mating materials and can provide resistance to rotation.

Plain Flange Nuts

Have a relatively smooth bearing surface.

They distribute bearing pressure without relying on serration engagement.

Engineering Selection

Choose a serrated flange nut when the assembly permits tooth engagement and surface marking.

Choose a plain flange nut when a smooth bearing surface is required.

The two configurations should not be substituted without engineering review.

Serrated Flange Nuts vs. Prevailing-Torque Locknuts

Serrated flange nuts and prevailing-torque locknuts use different mechanisms.

Serrated Flange Nuts

Rely on engagement between the flange teeth and mating surface.

Prevailing-Torque Locknuts

Generate resistance to rotation through a locking feature acting on the mating bolt threads.

Examples include:

• Distorted-thread locknuts.

• All-metal prevailing-torque locknuts.

• Nylon-insert locknuts.

A serrated flange nut does not automatically generate prevailing torque before its flange contacts the workpiece.

304 Stainless Steel Serrated Flange Nuts

SUS304 is an austenitic stainless steel grade commonly associated with 304-type stainless steel.

In American industrial catalogs, related fasteners are often described as 18-8 stainless steel.

304 stainless steel provides corrosion resistance in many general industrial environments.

Potential Applications

• Indoor industrial machinery.

• Equipment brackets.

• Electrical cabinets.

• Industrial automation.

• HVAC equipment.

• General stainless steel fabrication.

• Selected outdoor equipment.

Engineering Considerations

304 stainless steel is not universally resistant to all chemicals or chloride environments.

Actual corrosion performance depends on the service conditions.

316 Stainless Steel Serrated Flange Nuts

SUS316 is an austenitic stainless steel containing molybdenum.

Compared with conventional 304 stainless steel, 316 may provide improved resistance to certain chloride-containing environments.

Potential Applications

• Selected marine equipment.

• Chemical processing machinery.

• Outdoor industrial equipment.

• Pump and valve accessories.

• Food processing equipment.

• Pharmaceutical equipment.

• Humid mechanical environments.

Important Material Limitation

316 stainless steel is not corrosion-proof.

Concentrated chlorides, crevice conditions, aggressive chemicals and elevated temperatures may still cause corrosion.

The actual service environment must be evaluated.

304 vs. 316 Stainless Steel

The correct grade should be selected according to the actual application.

18-8 Stainless Steel vs. SUS304

18-8 is a commercial designation commonly used in American fastener catalogs.

It generally describes a chromium-nickel stainless steel family.

SUS304 is a specific Japanese material designation.

Although these terms overlap in common industrial usage, material certification should identify the actual supplied grade.

A2 and A4 Stainless Steel Fastener Grades

European OEM buyers may request A2 or A4 stainless steel fasteners.

These designations are associated with stainless steel material groups used in ISO fastener standards.

A2 Stainless Steel

Commonly associated with 304-type stainless steel fasteners.

A4 Stainless Steel

Commonly associated with 316-type stainless steel fasteners.

However, A2 and A4 designations must be verified against the applicable standard.

A2-70 and A4-70

These are mechanical property designations, not merely material names.

The original product specification does not establish that every SUS304 nut meets A2-70 or that every SUS316 nut meets A4-70.

Such claims require supporting mechanical property verification.

ISO 3506-2 Stainless Steel Nut Mechanical Properties

ISO 3506-2:2020 specifies mechanical and physical properties for corrosion-resistant stainless steel nuts within its scope.

It includes specified stainless steel grades and property classes.

Relevant Engineering Requirements

• Material grade.

• Mechanical property class.

• Nut geometry.

• Thread size.

• Proof load.

• Mating bolt compatibility.

• Applicable test requirements.

ISO 3506-2 does not establish the serrated flange nut's vibration resistance or installation torque performance.

These functional characteristics require separate evaluation.

Natural Stainless Steel Finish

The featured product uses a natural stainless steel finish.

It does not require zinc plating as its standard surface treatment.

Potential customer-specified finishing operations may include:

• Cleaning.

• Deburring.

• Passivation.

• Electropolishing.

• Surface polishing.

These operations are not automatically included unless specified.

RoHS and Environmental Compliance

Stainless steel fasteners may be evaluated against applicable restricted-substance requirements.

RoHS compliance depends on the actual material and manufacturing processes.

Where customers require RoHS documentation, the supplier should provide appropriate declarations supported by the supplied product.

Natural stainless steel appearance alone does not establish regulatory compliance.

Corrosion Resistance in Industrial Environments

Stainless steel provides corrosion resistance through a chromium-rich passive surface.

Actual performance depends on:

• Stainless steel grade.

• Surface condition.

• Environmental chemistry.

• Chloride concentration.

• Temperature.

• Crevice geometry.

• Contact with dissimilar metals.

• Maintenance and cleaning conditions.

Potential Corrosion Mechanisms

• Pitting corrosion.

• Crevice corrosion.

• Galvanic corrosion.

• Stress corrosion cracking in susceptible conditions.

The appropriate material grade must be selected for the actual operating environment.

Galvanic Corrosion Considerations

Stainless steel may contact dissimilar metals in industrial assemblies.

Examples include:

• Aluminum brackets.

• Carbon steel frames.

• Zinc-coated steel panels.

• Other metallic equipment components.

When dissimilar metals are electrically connected in the presence of an electrolyte, galvanic corrosion may occur.

The joint design may require suitable material combinations or isolation methods.

Serration Engagement and Coating Damage

The serrations on the flange can penetrate or mark the mating surface.

This may affect protective coatings on:

• Painted steel.

• Powder-coated panels.

• Zinc-plated brackets.

• Aluminum components.

• Decorative metal surfaces.

Engineering Considerations

• Mating surface hardness.

• Coating thickness.

• Serration geometry.

• Applied clamp force.

• Surface damage.

• Corrosion exposure after installation.

For corrosion-sensitive assemblies, the contact area should be evaluated after tightening.

Stainless Steel Thread Galling

Thread galling is an important consideration when stainless steel nuts are installed on stainless steel bolts.

Galling is a form of adhesive wear that can occur when metal surfaces slide under pressure.

Potential Symptoms

• Increasing installation torque.

• Thread seizure.

• Surface damage.

• Difficult removal.

• Inconsistent tightening performance.

Potential Galling Prevention Measures

• Verify mating thread compatibility.

• Avoid cross-threading.

• Use controlled installation speed.

• Inspect threads before assembly.

• Consider suitable mating materials.

• Use approved lubrication where permitted.

• Validate the tightening procedure.

Lubrication can change friction and bolt preload.

The correct procedure must be established for the actual joint.

DIN 6923 Hexagon Flange Nut Reference

DIN 6923 is a recognized dimensional reference for hexagon flange nuts.

The original product information identifies DIN 6923.

For the featured serrated version, the approved drawing should establish the required flange geometry and serration details.

Important Dimensions

• Thread diameter.

• Thread pitch.

• Nut height.

• Width across flats.

• Width across corners.

• Flange diameter.

• Flange thickness.

• Serration geometry.

• Bearing surface profile.

• Dimensional tolerances.

DIN 6923 vs. ISO 4161

ISO 4161 is a related international reference for hexagon nuts with flange.

However, the actual standard edition and dimensional requirements must be checked.

DIN 6923 and ISO 4161 should not automatically be treated as identical for every product configuration.

Metric Size Range

The original product range includes:

• M4

• M5

• M6

• M8

• M10

• M12

• M14

• M16

• M20

Common Metric Coarse Thread References

These are nominal reference pitches.

Actual product dimensions, thread pitch and manufacturing availability must be confirmed.

Metric Fine-Pitch Options

Some OEM applications require metric fine-pitch threads.

These should be reviewed separately according to:

• Thread diameter.

• Required pitch.

• Nut height.

• Flange geometry.

• Material grade.

• Mechanical properties.

• Installation requirements.

Metric vs. UNC and UNF Threads

American buyers may search for stainless steel serrated flange nuts using UNC or UNF thread terminology.

These are separate thread systems.

Metric and Unified inch-series threads are not directly interchangeable.

Examples:

• M6 × 1.0 is not interchangeable with 1/4"-20 UNC.

• M8 × 1.25 is not interchangeable with 5/16"-18 UNC.

• M10 × 1.5 is not interchangeable with 3/8"-16 UNC.

Any inch-series inquiry requires separate specification and supply confirmation.

Integral Flange and Washer Replacement

The integrated flange provides a larger bearing area than a conventional hex nut.

This may reduce the need for a separate flat washer in suitable assemblies.

Potential Benefits

• Fewer loose components.

• Simplified material handling.

• Reduced washer installation steps.

• Wider bearing contact.

• Compatibility with selected automated assembly processes.

Important Limitation

A serrated flange nut cannot automatically replace every washer.

Hardened washers, sealing washers and other specialized components may perform functions not provided by the flange.

Oversized and Irregular Clearance Holes

The enlarged flange may provide additional bearing coverage around a clearance hole.

However, the flange must maintain adequate support.

Engineering Factors

• Hole diameter.

• Hole geometry.

• Flange outside diameter.

• Joint material thickness.

• Bearing contact area.

• Applied clamp force.

• Edge distance.

• Position tolerance.

The assembly must be validated rather than assuming the flange is suitable for every oversized hole.

Industrial Applications and Engineering Solutions

1. Food Processing Equipment

Food processing machinery may require corrosion-resistant mechanical fasteners.

Engineering Challenge

Moisture and cleaning chemicals may affect fastening components.

Potential Solution

304 or 316 stainless steel serrated flange nuts may be considered for selected external mechanical connections.

Food-contact and sanitary requirements must be verified separately.

2. Pharmaceutical Equipment

Pharmaceutical manufacturing equipment may require controlled materials and surface conditions.

Engineering Challenge

Cleaning procedures and corrosion exposure influence fastener selection.

Potential Solution

A properly specified stainless steel serrated flange nut may be evaluated for approved mechanical assemblies.

Cleanroom and contamination requirements require separate qualification.

3. Chemical Processing Equipment

Chemical processing machinery may contain external brackets and equipment supports.

Engineering Challenge

Chemical exposure can affect material performance.

Potential Solution

316 stainless steel serrated flange nuts may be considered where the actual chemical environment is compatible.

4. Industrial Pumps

Pump assemblies may contain mechanical brackets, support frames and auxiliary components.

Engineering Challenge

Moisture and vibration can affect fastening performance.

Potential Solution

A serrated stainless steel flange nut may be evaluated where surface engagement and corrosion requirements are compatible.

5. Industrial Valves

Valve manufacturers may require corrosion-resistant fasteners for external mounting hardware.

Engineering Challenge

Environmental exposure and mechanical loading influence joint design.

Potential Solution

A suitable stainless steel serrated flange nut may be considered for approved support and accessory connections.

Pressure-boundary bolting requires separate qualification.

6. HVAC Equipment

HVAC systems contain fans, pumps and mechanical support structures.

Engineering Challenge

Condensation and vibration can influence fastener selection.

Potential Solution

A stainless steel serrated flange nut may be evaluated for compatible mechanical mounting assemblies.

7. Industrial Automation Equipment

Automation systems often use mechanical frames and brackets.

Engineering Challenge

Assembly efficiency and vibration can affect fastening requirements.

Potential Solution

An integrated serrated flange nut may simplify suitable assemblies while providing corrosion resistance.

8. Electrical Cabinets and Enclosures

Electrical equipment may require corrosion-resistant mounting hardware.

Engineering Challenge

Mechanical fastening must remain consistent under the intended service conditions.

Potential Solution

A stainless steel serrated flange nut may be considered for appropriate bracket connections.

Electrical bonding requirements must be evaluated independently.

9. Semiconductor Equipment

Semiconductor manufacturing equipment may require carefully specified stainless steel components.

Engineering Challenge

Cleanliness, particle generation and material compatibility can be important.

Potential Solution

A stainless steel serrated flange nut may be considered for suitable external mechanical assemblies.

Serration-generated particles and surface damage must be evaluated where cleanliness is critical.

10. AI Data Center Cooling Infrastructure

AI data center infrastructure includes cooling equipment, pumps and support systems.

Engineering Challenge

Moisture and equipment vibration can affect mechanical fastening.

Potential Solution

A stainless steel serrated flange nut may be evaluated for compatible cooling equipment brackets and non-critical mounting connections.

11. Renewable Energy Equipment

Renewable energy systems may operate in outdoor environments.

Engineering Challenge

Corrosion exposure and mechanical loading influence material selection.

Potential Solution

304 or 316 stainless steel serrated flange nuts may be considered according to the actual environmental requirements.

12. Marine Equipment

Marine equipment may be exposed to salt spray and chloride-containing environments.

Engineering Challenge

Chloride exposure can cause localized corrosion.

Potential Solution

316 stainless steel may provide advantages over 304 in selected environments.

However, the complete assembly must be evaluated for pitting, crevice and galvanic corrosion.

13. Industrial Machinery

Industrial machinery may require threaded connections for guards, frames and support brackets.

Engineering Challenge

Vibration and maintenance access affect joint reliability.

Potential Solution

A serrated stainless steel flange nut may be evaluated where the mating surface can tolerate serration engagement.

14. Outdoor Industrial Enclosures

Outdoor enclosures may experience humidity, rain and temperature variation.

Engineering Challenge

Fastener corrosion and coating damage can affect service life.

Potential Solution

A properly specified stainless steel serrated flange nut may be considered for compatible mounting applications.

15. General OEM Equipment Manufacturing

OEM manufacturers may require customized flange nuts for specialized assemblies.

Engineering Challenge

Standard products may not match the required flange geometry, material grade or thread specification.

Potential Solution

A drawing-based stainless steel serrated flange nut may be evaluated for custom dimensions and production quantities.

Installation Engineering

Correct installation is important for serrated stainless steel flange nuts.

Step 1: Verify the Mating Bolt

Confirm thread diameter, pitch and material compatibility.

Step 2: Inspect the Nut

Check threads, serrations and surface condition.

Step 3: Evaluate the Mating Surface

Confirm that serration engagement is acceptable.

Step 4: Verify Bearing Support

Ensure the flange has sufficient contact area.

Step 5: Start the Threads Correctly

Avoid cross-threading.

Step 6: Apply the Approved Tightening Procedure

Use the specified torque or tensioning method.

Step 7: Inspect the Finished Joint

Confirm seating, thread engagement and joint condition.

Important Installation Factors

• Thread compatibility.

• Stainless steel galling.

• Serration engagement.

• Mating surface hardness.

• Flange bearing area.

• Joint preload.

• Tightening torque.

• Surface damage.

• Corrosion protection.

Torque–Tension and Clamp Force Considerations

The relationship between tightening torque and clamp force depends on friction.

For serrated stainless steel flange nuts, friction may be influenced by:

• Thread material.

• Surface finish.

• Serration geometry.

• Mating surface hardness.

• Lubrication.

• Installation speed.

• Joint condition.

A torque value approved for a plain flange nut should not automatically be applied to a serrated flange nut.

The actual tightening procedure must be validated.

Production Management and Assembly Efficiency

For production managers, serrated flange nuts may influence assembly efficiency and quality.

Potential Benefits

• Reduced loose washer handling.

• Fewer assembly components.

• Simplified parts feeding.

• Consistent integrated flange geometry.

• Compatibility with selected automated assembly processes.

Production Control Factors

• Nut orientation.

• Thread starting.

• Serration condition.

• Material grade consistency.

• Surface cleanliness.

• Galling prevention.

• Installation torque.

• Clamp-force validation.

• Tool calibration.

• Rework.

• Lot traceability.

• Repeat-order supply stability.

The assembly process should be validated before production release.

Common Engineering Problems and Troubleshooting

Problem 1: Stainless Steel Thread Galling

Possible causes include high contact pressure, unsuitable installation speed or incompatible mating materials.

Problem 2: Insufficient Serration Engagement

Possible causes include unsuitable mating surface hardness or inadequate clamp force.

Problem 3: Excessive Surface Damage

Possible causes include aggressive serration engagement or unsuitable mating materials.

Problem 4: Corrosion

Possible causes include an unsuitable stainless steel grade or aggressive environmental exposure.

Problem 5: Galvanic Corrosion

Possible causes include contact with dissimilar metals in the presence of an electrolyte.

Problem 6: Inconsistent Clamp Force

Possible causes include friction variation or unsuitable tightening procedures.

Problem 7: Thread Damage

Possible causes include cross-threading or incompatible thread specifications.

Problem 8: Joint Loosening

Possible causes include insufficient preload, joint settlement or unsuitable locking provisions.

Corrective actions should follow the approved engineering requirements.

Quality Inspection and OEM Validation

Quality requirements should be established by the approved drawing and customer specification.

Dimensional Inspection

Potential characteristics include:

• Thread diameter.

• Thread pitch.

• Nut height.

• Width across flats.

• Flange diameter.

• Flange thickness.

• Serration geometry.

• Critical tolerances.

Material Verification

Confirm the specified SUS304 or SUS316 stainless steel grade.

Mechanical Property Verification

Verify the required mechanical property class and applicable proof-load requirements.

Surface Inspection

Potential requirements include:

• Natural metallic appearance.

• Surface cleanliness.

• Burr removal.

• Passivation requirements, where specified.

• Corrosion condition.

Functional Assembly Validation

Depending on the application, testing may include:

• Thread compatibility.

• Serration engagement.

• Installation torque.

• Torque–tension behavior.

• Clamp-force performance.

• Vibration resistance.

• Surface damage.

• Galling behavior.

• Joint retention.

OEM Quality Documentation

Depending on customer requirements, documentation may include:

• Approved engineering drawings.

• Material specifications.

• Dimensional inspection reports.

• Mechanical property reports.

• Surface treatment specifications.

• RoHS declarations, where required.

• Corrosion test reports.

• First article inspection.

• Production traceability.

• Process control records.

• PPAP documentation, where applicable.

These are potential customer-defined requirements and must be supported by actual manufacturing and inspection records.

Custom Stainless Steel Serrated Flange Nuts to Engineering Drawings

JUXIN FASTENERS supports drawing-based inquiries for 304 and 316 stainless steel serrated flange nuts, metric DIN 6923 flange nuts and custom corrosion-resistant industrial fasteners.

Custom requirements may include:

• Stainless steel grade.

• Thread diameter.

• Thread pitch.

• Nut height.

• Width across flats.

• Flange diameter.

• Flange thickness.

• Serration geometry.

• Mechanical property class.

• Natural surface finish.

• Passivation requirements.

• Corrosion resistance.

• Mating surface compatibility.

• Installation torque.

• Inspection criteria.

• Packaging.

• Production volume.

Manufacturing feasibility and quotation depend on the approved technical specifications.

Frequently Asked Engineering and Procurement Questions

What are stainless steel serrated flange nuts?

They are stainless steel hexagon nuts with an integral flange and teeth on the underside.

What is the American product name?

Stainless Steel Serrated Flange Nuts is a recognized American industrial catalog designation.

What is the difference between 304 and 316 stainless steel?

316 contains molybdenum and may provide improved corrosion resistance in certain chloride-containing environments.

Are 18-8 stainless steel and SUS304 identical?

They overlap in common industrial usage, but the actual material grade should be verified.

Are SUS304 nuts automatically A2-70?

No. A2-70 requires verified mechanical properties.

Are SUS316 nuts automatically A4-70?

No. A4-70 requires verified mechanical properties.

How do serrated flange nuts resist loosening?

Their serrations engage compatible mating surfaces and provide resistance to rotation.

Are serrated flange nuts the same as prevailing-torque locknuts?

No. They use different locking mechanisms.

Can serrations damage painted surfaces?

Yes. Serrations may penetrate or mark coatings.

Do stainless steel serrated flange nuts require washers?

A separate flat washer may not be required in suitable assemblies, but the joint design must be reviewed.

Can stainless steel nuts experience thread galling?

Yes. Galling can occur under certain installation conditions.

Are 316 stainless steel flange nuts suitable for marine environments?

They may be suitable for selected applications, but chloride exposure and crevice corrosion must be evaluated.

What is DIN 6923?

DIN 6923 is a recognized German product standard reference for hexagon flange nuts.

What sizes are listed?

M4, M5, M6, M8, M10, M12, M14, M16 and M20.

Are metric and UNC flange nuts interchangeable?

No. Metric and UNC threads are not directly interchangeable.

Can JUXIN FASTENERS evaluate custom stainless steel serrated flange nut drawings?

Yes. Customer-specific inquiries can be reviewed according to the supplied drawings and production requirements.

Request a Custom Stainless Steel Serrated Flange Nut RFQ

JUXIN FASTENERS supports OEM sourcing and engineering inquiries for 304 stainless steel serrated flange nuts, 316 stainless steel serrated flange nuts and custom corrosion-resistant threaded fasteners.

For a new OEM program or an existing production component, please provide:

• 2D engineering drawing or 3D CAD file.

• Required standard and edition.

• SUS304 or SUS316 material requirement.

• Required mechanical property class.

• Metric thread diameter and pitch.

• Nut height and width across flats.

• Flange diameter and thickness.

• Serration geometry.

• Mating surface material and coating.

• Natural finish or passivation requirements.

• Corrosion resistance requirements.

• Operating environment.

• Installation torque and functional requirements.

• Quality and inspection criteria.

• Initial order quantity.

• Estimated annual production volume.

• Target delivery schedule.

Our team can review the engineering specifications and discuss manufacturing feasibility, technical clarification and quotation.

JUXIN FASTENERS

Website: https://www.juxinfasteners.com/

Email: info@juxinfasteners.com

Submit Your Engineering Drawings for a Custom 304 or 316 Stainless Steel Serrated Flange Nut RFQ.

Packaging Standard

At Juxin Fasteners, we apply standardized export packaging to ensure product protection, traceability, and compliance with international logistics requirements.

1. Standard Export Packaging

Unless otherwise specified, all products will be packed according to our factory standard export packaging, which includes:

Moisture-resistant inner protection

Poly bag or small box packing as required

Reinforced export cartons

Clear labeling with part number, specification, batch number, and quantity

Palletizing for sea or air shipment when necessary

Our standard packaging is designed to ensure safe transportation, efficient warehousing, and long-distance international shipping.

2. Customized Packaging Options

We also provide customized packaging solutions according to customer requirements, including but not limited to:

Private labeling

Customized barcodes

Specific carton dimensions

Retail packaging

Special pallet configuration

Customer-specific marking and identification

So that you know, customized packaging may involve additional costs and extended lead time depending on the complexity of the requirements.

3. Compliance & Quality Assurance

All packaging processes are controlled under our ISO 9001 quality management system to ensure consistency, traceability, and product integrity throughout the supply chain.