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Standard Flange Nuts

High-Strength Steel Flange Nuts – Class 10, RoHS Iridescent Zinc, 192h NSS

JUXIN FASTENERS supplies high-strength carbon steel hex flange nuts with RoHS-compliant iridescent zinc plating for automotive OEM and industrial machinery applications. 

The featured product focuses on metric Property Class 10, DIN 6923 flange geometry and a specified 192-hour neutral salt spray performance requirement. 

Its integral plain flange distributes bearing pressure and can replace a separate flat washer in suitable joint designs.

 The original catalog lists M4–M20, with other property classes and inch-series configurations subject to confirmation.

 Technical sourcing support covers coating specifications, ISO 4042, ISO 898-2, torque–tension behavior, corrosion testing, dimensional inspection and custom high-volume OEM RFQs.


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Product Specification

High-Strength Steel Flange Nuts – DIN 6923 Class 10 with RoHS-Compliant Iridescent Zinc Plating

192-Hour Neutral Salt Spray Protection for Automotive OEM and Industrial Equipment Assemblies

JUXIN FASTENERS supplies high-strength carbon steel hex flange nuts with RoHS-compliant iridescent zinc plating for automotive manufacturers, 

Tier-1 and Tier-2 suppliers, industrial equipment manufacturers and global OEM procurement teams.

The featured product combines a hexagon nut with an integral flange and a protective zinc electroplating system specified for 192 hours of neutral salt spray resistance.

The flange provides a larger bearing surface than a conventional hex nut of comparable size. 

In appropriately designed joints, this can distribute contact pressure over a wider area and eliminate the need for a separate flat washer.

The featured high-strength configuration is focused on metric Property Class 10. 

The original product family also lists Classes 5, 6 and 8, which must be identified separately according to their actual mechanical properties.

The original dimensional reference is DIN 6923.

The primary American procurement terminology includes High-Strength Steel Flange Nuts, Hex Flange Nuts, Class 10 Flange Nuts and Zinc-Plated Steel Flange Nuts.

Product Specifications

Product Name: High-Strength Steel Flange Nuts

American Commercial Name: High-Strength Steel Flange Nuts

Engineering Description: Class 10 Plain Hexagon Flange Nuts

Alternative Names:

  • High-Strength Hex Flange Nuts

  • Metric Class 10 Flange Nuts

  • DIN 6923 Flange Nuts

  • Zinc-Plated Steel Flange Nuts

  • Iridescent Zinc-Plated Flange Nuts

  • Plain Hex Flange Nuts

  • Non-Serrated Flange Nuts

  • Integral Washer Hex Nuts

  • Collar Nuts

Material: Carbon Steel

Featured Mechanical Property Class: Class 10, Subject to Product Verification

Other Original Product Family Classes: 5, 6 and 8

Featured Surface Treatment: RoHS-Compliant Iridescent Zinc Electroplating

Corrosion Performance Requirement: 192 Hours Neutral Salt Spray

Primary Dimensional Reference: DIN 6923

Related International Dimensional Reference: ISO 4161

Mechanical Property Reference: ISO 898-2

Electroplated Coating Reference: ISO 4042

Salt Spray Test Reference: ISO 9227, Where Specified

Original Metric Size Range:

  • M4

  • M5

  • M6

  • M8

  • M10

  • M12

  • M14

  • M16

  • M20

Additional Thread Options: Metric Fine Thread and Inch-Series Configurations Subject to Separate Review

Flange Type: Plain Integral Flange, Subject to Drawing Confirmation

Surface Finish: Iridescent Zinc

Manufacturing Basis: Approved Customer Engineering Drawings and Technical Specifications

What Are High-Strength Steel Flange Nuts?

High-strength steel flange nuts are internally threaded hexagon nuts with an enlarged circular bearing flange.

The flange is integrated into the nut body.

When tightened against a compatible joint surface, the flange distributes contact pressure over a larger area than a conventional hex nut.

This design can simplify certain mechanical assemblies.

Potential Engineering Benefits

  • Wider bearing contact.

  • Reduced need for separate flat washers.

  • Simplified assembly handling.

  • Fewer loose components.

  • Compatibility with selected automated assembly systems.

  • Controlled dimensions for OEM production.

  • Protective coating options.

These benefits depend on the complete joint design.

Plain Flange vs. Serrated Flange Nuts

Plain flange nuts and serrated flange nuts are different configurations.

Plain Flange Nuts

Have a relatively smooth bearing surface and distribute contact pressure without relying on teeth.

Serrated Flange Nuts

Have teeth on the underside of the flange that may engage the mating material and resist rotation.

The featured product is positioned as a plain flange nut.

If the approved drawing specifies a serrated bearing surface, the product description must be updated accordingly.

Are Plain Flange Nuts Self-Locking?

Not automatically.

A plain flange does not provide a built-in prevailing-torque locking mechanism.

For applications requiring additional resistance to loosening, engineers may consider an approved locking design.

Examples include:

  • All-metal prevailing-torque nuts.

  • Distorted-thread flange locknuts.

  • Nylon-insert flange locknuts.

  • Other validated locking methods.

The correct solution depends on the complete assembly.

Property Class 10 High-Strength Steel

Property Class 10 identifies specified mechanical properties for metric steel nuts.

The applicable requirements are addressed by ISO 898-2.

A Class 10 nut must meet the relevant requirements for its actual product configuration.

Important Mechanical Requirements

  • Nut proof load.

  • Thread engagement.

  • Mating bolt compatibility.

  • Nut geometry.

  • Joint preload.

  • Installation procedure.

  • Fatigue loading.

  • Operating environment.

Class 10 and Class 10.9 Bolts

Class 10 nuts may be used in appropriately specified assemblies with suitable Class 10.9 bolts.

However, compatibility must be verified against the applicable standards and joint design.

A matching designation does not guarantee the performance of the entire bolted joint.

Class 8 vs. Class 10 Flange Nuts

Class 8 and Class 10 are different metric nut property classes.

Class 10 is associated with higher mechanical property requirements.

The original catalog lists both classes, but they must be quoted and verified separately.

Metric Class 10 vs. SAE Grade 8

American buyers may search for high-strength flange nuts using SAE Grade 8 terminology.

SAE Grade 8 is an American inch-series fastener classification.

Metric Class 10 and SAE Grade 8 are not interchangeable designations.

The required thread system, product standard and strength classification must be specified independently.

DIN 6923 Hexagon Flange Nut Standard

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

It is widely used in European and international industrial procurement.

Important Dimensional Characteristics

  • Nominal thread diameter.

  • Thread pitch.

  • Nut height.

  • Width across flats.

  • Width across corners.

  • Flange outside diameter.

  • Flange thickness.

  • Bearing surface geometry.

  • Thread tolerance.

  • Dimensional tolerances.

The applicable standard edition and actual product dimensions must be confirmed.

DIN 6923 and ISO 4161

ISO 4161:2012 specifies characteristics of style 2 hexagon flange nuts with metric coarse threads from M5 through M20.

It is a relevant international dimensional reference.

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

The original product range includes M4, which is outside the stated M5–M20 scope of ISO 4161:2012.

M4 and any nonstandard configurations require separate drawing verification.

Metric Size Range

The original product family lists:

  • M4

  • M5

  • M6

  • M8

  • M10

  • M12

  • M14

  • M16

  • M20

Common Metric Coarse-Thread References

Nominal ThreadCommon Coarse Pitch
M40.7 mm
M50.8 mm
M61.0 mm
M81.25 mm
M101.5 mm
M121.75 mm
M142.0 mm
M162.0 mm
M202.5 mm

These are nominal engineering references, not confirmation that every size is available in Class 10 with the featured coating.

Actual availability must be verified.

Metric Fine-Pitch Flange Nuts

Some automotive and industrial applications require fine-pitch metric threads.

The customer should specify:

  • Nominal thread diameter.

  • Required pitch.

  • Nut dimensions.

  • Mechanical property class.

  • Coating.

  • Installation requirements.

Fine-pitch options require separate technical review.

Metric vs. UNC and UNF Threads

American procurement teams may request inch-series flange nuts.

These use separate thread systems.

Metric and UNC/UNF 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 configuration must be specified and quoted separately.

RoHS-Compliant Iridescent Zinc Plating

The featured surface treatment is an iridescent zinc electroplating system specified for RoHS-compliant applications.

In American and European engineering procurement, related terminology includes:

  • Iridescent Zinc Plating.

  • Color Zinc Plating.

  • Yellow-Iridescent Zinc Plating.

  • Zinc Plating with Trivalent Chromium Passivation, Where Specified.

  • RoHS-Compliant Zinc-Plated Fasteners.

How Zinc Plating Protects Carbon Steel

Zinc electroplating deposits a protective zinc layer on the steel substrate.

The zinc provides sacrificial corrosion protection.

Passivation and optional sealing treatments may improve the coating's corrosion performance.

The resulting appearance can range from silver to yellow-iridescent or multicolored, depending on the coating chemistry.

Important Environmental Compliance Distinction

Traditional yellow chromate coatings and modern RoHS-compliant iridescent zinc coatings are not necessarily chemically equivalent.

Color alone does not establish the presence or absence of hexavalent chromium.

The coating chemistry and supporting documentation must be verified.

ISO 4042 Electroplated Coating Systems

ISO 4042:2022 specifies requirements for electroplated coating systems on steel fasteners.

It addresses zinc and zinc-alloy coating systems.

Relevant coating elements may include:

  • Electroplated zinc.

  • Conversion coating.

  • Passivation.

  • Sealer.

  • Topcoat.

  • Lubrication.

It also addresses measures intended to minimize hydrogen embrittlement risk.

192-Hour Neutral Salt Spray Resistance

The featured coating is specified for 192 hours of neutral salt spray resistance.

Neutral salt spray testing is an accelerated laboratory method used to evaluate coated metal components.

ISO 9227 is an important international test method reference.

What Must a 192-Hour NSS Specification Include?

A complete requirement should identify:

  • Test method.

  • Test duration.

  • Sample condition.

  • Coating system.

  • Coating thickness.

  • Passivation.

  • Sealer, if applicable.

  • Corrosion acceptance criteria.

  • Test report requirements.

White Corrosion vs. Red Rust

White corrosion products generally relate to zinc coating corrosion.

Red rust generally indicates corrosion of the underlying steel substrate.

These are different acceptance criteria.

A claim of 192 hours without red rust is not the same as 192 hours without any visible corrosion.

The actual customer requirement must identify the acceptance criterion.

Does 192 Hours NSS Equal Outdoor Service Life?

No.

Neutral salt spray hours cannot be directly converted into years of real-world service.

Actual performance depends on:

  • Temperature.

  • Humidity.

  • Salt exposure.

  • Chemical contamination.

  • Coating damage.

  • Joint geometry.

  • Maintenance.

192h Iridescent Zinc vs. 720h Black Zinc-Nickel

These are separate corrosion-protection configurations.

Iridescent Zinc Plating – 192h NSS

A zinc electroplating system specified for the featured 192-hour neutral salt spray requirement.

Black Zinc-Nickel Plating – 720h NSS

A different zinc-alloy electroplating system specified for a higher neutral salt spray test duration.

The two coating systems may differ in:

  • Alloy composition.

  • Coating thickness.

  • Passivation.

  • Friction.

  • Appearance.

  • Corrosion performance.

  • Process cost.

They should not be treated as interchangeable without customer approval.

Iridescent Zinc vs. Zinc-Flake Coatings

Zinc electroplating and zinc-flake coatings use different application technologies.

Zinc-flake coatings may be specified for certain high-strength fastener applications.

The selection should consider:

  • Required corrosion resistance.

  • Mechanical property class.

  • Hydrogen embrittlement risk.

  • Coating thickness.

  • Torque–tension performance.

  • Customer specifications.

Hydrogen Embrittlement Considerations

Hydrogen embrittlement is an important consideration for certain high-strength steel fasteners.

Hydrogen may be introduced during manufacturing, surface preparation or electroplating.

The risk depends on:

  • Steel strength.

  • Heat treatment.

  • Manufacturing processes.

  • Surface preparation.

  • Electroplating conditions.

  • Operating stress.

  • Post-treatment controls.

The coating process must be appropriate for the actual material strength and application.

Coating Thickness and Thread Fit

Electroplated coating thickness can affect the fit of threaded components.

Important controls include:

  • Coating thickness.

  • Thread tolerance.

  • Finished thread fit.

  • Coating coverage.

  • Surface defects.

  • Dimensional inspection.

The finished nut must remain compatible with the specified mating bolt.

Coating Friction and Torque–Tension Performance

Coating friction affects the relationship between applied tightening torque and achieved bolt preload.

Important Variables

  • Thread friction.

  • Flange bearing friction.

  • Zinc coating.

  • Passivation.

  • Sealer.

  • Lubrication.

  • Mating bolt coating.

  • Surface condition.

A torque value approved for an uncoated nut should not automatically be applied to a zinc-plated nut.

The complete joint must be validated.

Integral Flange and Washer Replacement

The flange provides a wider bearing surface than a conventional hex nut.

This may eliminate a separate flat washer in suitable applications.

Potential Benefits

  • Reduced loose washer handling.

  • Fewer assembly components.

  • Simplified parts feeding.

  • Wider bearing contact.

  • Potential assembly time savings.

  • Reduced risk of omitted washers.

Important Limitation

The flange does not automatically replace every type of washer.

Hardened washers, sealing washers and other specialized components may serve additional functions.

Oversized and Irregular Clearance Holes

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

However, the flange must maintain sufficient support.

Engineering Factors

  • Hole diameter.

  • Hole geometry.

  • Flange diameter.

  • Bearing area.

  • Joint thickness.

  • Edge distance.

  • Clamp force.

  • Material deformation.

The assembly must be evaluated rather than assuming every oversized hole is acceptable.

Industrial Applications and Engineering Solutions

1. Automotive Body Brackets

Automotive manufacturers use flange nuts in selected brackets and mechanical supports.

Engineering Challenge

High-volume assembly requires consistent dimensions and fastening performance.

Potential Solution

A Class 10 zinc-plated flange nut may be evaluated for an approved mechanical connection.

2. Automotive Chassis Components

Vehicle chassis assemblies may require high-strength fasteners.

Engineering Challenge

Mechanical loading and corrosion exposure influence fastener selection.

Potential Solution

A properly specified Class 10 flange nut may be considered where the joint design permits.

Safety-critical applications require dedicated validation.

3. Automotive Interior and Exterior Supports

Vehicle assemblies may contain mounting brackets and support structures.

Engineering Challenge

Component alignment and production efficiency affect assembly operations.

Potential Solution

An integral flange nut may simplify selected fastening operations.

4. Electric Vehicle Components

EV equipment may contain mechanical brackets, covers and support assemblies.

Engineering Challenge

Corrosion protection, assembly consistency and compatibility with surrounding materials are important.

Potential Solution

A zinc-plated flange nut may be evaluated for suitable non-critical mechanical connections.

Battery safety, sealing and electrical isolation requirements must be validated separately.

5. Automotive Thermal Management Equipment

Automotive cooling systems use pumps, brackets and auxiliary components.

Engineering Challenge

Moisture, vibration and temperature variation affect fastening requirements.

Potential Solution

A properly specified flange nut may be considered for suitable mounting assemblies.

6. Commercial Vehicle Equipment

Commercial vehicles may contain equipment brackets and mechanical supports.

Engineering Challenge

Dynamic loading and corrosion exposure influence joint requirements.

Potential Solution

A high-strength zinc-plated flange nut may be evaluated according to the approved design.

7. Industrial Pumps

Pump installations may contain mounting brackets and support frames.

Engineering Challenge

Vibration and environmental exposure affect fastener selection.

Potential Solution

A Class 10 flange nut may be considered for suitable mechanical connections.

8. Electric Motors

Electric motor assemblies may contain mechanical mounting points.

Engineering Challenge

Vibration and installation consistency influence joint performance.

Potential Solution

A high-strength flange nut may be evaluated for compatible mounting brackets.

9. Industrial Valves

Valve assemblies may require external mechanical support hardware.

Engineering Challenge

Mechanical loads and environmental exposure influence component selection.

Potential Solution

A zinc-plated flange nut may be considered for approved accessory connections.

Pressure-boundary bolting requires separate qualification.

10. Construction Equipment

Construction machinery may operate under vibration and environmental exposure.

Engineering Challenge

Fasteners require suitable mechanical properties and corrosion protection.

Potential Solution

A high-strength coated flange nut may be evaluated for selected equipment assemblies.

11. Agricultural Machinery

Agricultural equipment may experience moisture, dust and repeated vibration.

Engineering Challenge

Corrosion and assembly reliability affect service performance.

Potential Solution

A zinc-plated flange nut may be considered where the 192-hour coating requirement meets the approved specification.

12. Industrial Automation

Automation systems contain equipment frames and mechanical supports.

Engineering Challenge

Assembly efficiency and dimensional consistency affect production.

Potential Solution

An integral flange nut may reduce loose washer handling in suitable assemblies.

13. HVAC Equipment

HVAC systems contain fans, pumps and support structures.

Engineering Challenge

Condensation and vibration can affect fastening performance.

Potential Solution

A corrosion-protected flange nut may be evaluated for appropriate mechanical mounting points.

14. Power Distribution Equipment

Electrical infrastructure contains mechanical brackets and support components.

Engineering Challenge

Fastener selection must account for mechanical loading and environmental conditions.

Potential Solution

A coated flange nut may be considered for suitable mechanical connections.

Electrical bonding requirements must be evaluated separately.

15. AI Data Center Cooling Equipment

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

Engineering Challenge

Continuous operation requires dependable mechanical assemblies.

Potential Solution

A high-strength flange nut may be evaluated for suitable equipment mounting applications.

16. General OEM Equipment Manufacturing

OEM manufacturers may require custom dimensions or coating specifications.

Engineering Challenge

Standard catalog products may not match the required geometry, strength or corrosion performance.

Potential Solution

A drawing-based flange nut can be evaluated for the approved mechanical and coating requirements.

Production Management and Assembly Efficiency

For production managers, flange nuts may improve selected assembly processes.

Potential Benefits

  • Reduced washer handling.

  • Fewer loose components.

  • Simplified parts feeding.

  • Consistent flange geometry.

  • Improved inventory control.

  • Potential reduction in assembly errors.

Production Controls

  • Nut orientation.

  • Thread starting.

  • Coating consistency.

  • Installation torque.

  • Clamp-force validation.

  • Tool calibration.

  • Dimensional inspection.

  • Lot traceability.

  • Supplier consistency.

The actual process should be validated before production release.

Installation Engineering

Step 1: Verify the Mating Bolt

Confirm thread size, pitch and mechanical property class.

Step 2: Inspect the Nut

Check threads, flange and coating.

Step 3: Verify the Joint Surface

Confirm sufficient flange bearing support.

Step 4: Check Thread Engagement

Ensure the mating bolt provides the required engagement.

Step 5: Apply the Approved Tightening Procedure

Use the specified torque or tensioning method.

Step 6: Inspect the Finished Joint

Confirm seating, alignment and the required assembly condition.

Common Engineering Problems and Troubleshooting

Problem 1: Premature Corrosion

Possible causes include insufficient coating protection, handling damage or environmental exposure.

Problem 2: Inconsistent Clamp Force

Possible causes include coating friction variation or unsuitable tightening procedures.

Problem 3: Thread Stripping

Possible causes include incompatible mechanical properties or excessive installation loading.

Problem 4: Flange Bearing Damage

Possible causes include insufficient bearing support or excessive contact pressure.

Problem 5: Coating Damage

Possible causes include handling, tooling or installation conditions.

Problem 6: Thread Fit Problems

Possible causes include incorrect thread tolerance or coating buildup.

Problem 7: Hydrogen Embrittlement Risk

Possible causes include susceptible material conditions and inadequate process controls.

Problem 8: Joint Loosening

Possible causes include insufficient preload, joint settlement or lack of a required locking feature.

Corrective action must follow the approved engineering requirements.

Quality Inspection and Automotive OEM Validation

Quality requirements should be defined 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.

  • Bearing surface geometry.

  • Critical tolerances.

Mechanical Property Verification

Potential requirements include:

  • Material verification.

  • Property Class 10 verification.

  • Proof-load testing.

  • Hardness testing.

  • Heat treatment verification, where required.

Coating Verification

Potential requirements include:

  • Zinc coating thickness.

  • Passivation chemistry.

  • Iridescent appearance.

  • Corrosion resistance.

  • Coating adhesion.

  • Friction characteristics.

  • Restricted-substance compliance.

192-Hour NSS Test Documentation

The customer should specify:

  • Test method.

  • Test duration.

  • Sample condition.

  • Corrosion acceptance criteria.

  • Test report requirements.

Functional Assembly Validation

Depending on the application, testing may include:

  • Thread compatibility.

  • Installation torque.

  • Torque–tension behavior.

  • Clamp-force performance.

  • Joint retention.

  • Vibration performance.

Automotive Quality Documentation

Depending on customer requirements, documentation may include:

  • Approved engineering drawings.

  • Material specifications.

  • Mechanical test reports.

  • Dimensional inspection reports.

  • Coating specifications.

  • Salt spray test reports.

  • Restricted-substance declarations.

  • 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 Class 10 Iridescent Zinc-Plated Flange Nuts

JUXIN FASTENERS supports OEM inquiries for high-strength carbon steel hex flange nuts with RoHS-compliant iridescent zinc plating.

Custom requirements may include:

  • Thread diameter.

  • Thread pitch.

  • Nut height.

  • Width across flats.

  • Flange diameter.

  • Flange thickness.

  • Mechanical property class.

  • Steel material.

  • Heat treatment.

  • Iridescent zinc plating.

  • Passivation chemistry.

  • Coating thickness.

  • Neutral salt spray resistance.

  • Friction requirements.

  • Torque–tension performance.

  • Inspection criteria.

  • Packaging.

  • Production volume.

Manufacturing feasibility and quotation depend on the approved engineering specifications.

Frequently Asked Engineering and Procurement Questions

What are high-strength steel flange nuts?

They are steel hexagon nuts with an integral flange and specified high-strength mechanical properties.

What is the common American product name?

High-Strength Steel Flange Nuts or High-Strength Hex Flange Nuts.

What is DIN 6923?

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

What is Property Class 10?

It identifies specified mechanical properties for metric steel nuts.

Is metric Class 10 the same as SAE Grade 8?

No. They are different classification systems.

What is iridescent zinc plating?

It is a zinc coating with a passivated surface that may have a yellow or multicolored appearance.

Does iridescent zinc automatically meet RoHS?

No. Compliance depends on the actual coating chemistry and documentation.

What does 192h NSS mean?

It refers to a specified 192-hour neutral salt spray test duration.

Does 192h NSS mean 192 hours without red rust?

Only if the approved coating specification or test report identifies that acceptance criterion.

Does 192 hours NSS guarantee outdoor service life?

No. Laboratory test duration cannot be directly converted into actual service life.

Is iridescent zinc the same as black zinc-nickel?

No. They are different coating systems.

Does zinc plating affect tightening torque?

Yes. Coating friction can influence the relationship between torque and clamp force.

Are plain flange nuts self-locking?

No. A plain flange does not automatically provide prevailing-torque locking.

Can a flange nut replace a washer?

It may replace a flat washer in a suitable joint, subject to engineering approval.

What metric sizes are listed?

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

Are metric and UNC flange nuts interchangeable?

No. Metric and Unified inch-series threads are not directly interchangeable.

Can JUXIN FASTENERS evaluate custom automotive flange nut drawings?

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

Request a Custom High-Strength Steel Flange Nut RFQ

JUXIN FASTENERS supports automotive OEM and industrial procurement inquiries for high-strength steel flange nuts, DIN 6923 hexagon 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.

  • Thread diameter and pitch.

  • Required mechanical property class.

  • Mating bolt specification.

  • Nut height and width across flats.

  • Flange diameter and thickness.

  • Plain or serrated flange requirement.

  • Iridescent zinc coating specification.

  • Coating thickness.

  • RoHS documentation requirements.

  • Salt spray test method and acceptance criteria.

  • Coefficient-of-friction requirements.

  • Installation torque or preload requirements.

  • Quality and inspection requirements.

  • 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 Class 10 Iridescent Zinc-Plated Steel Flange Nut RFQ.


Product Packaging

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.


Product Pictures

High-Strength Steel Hexagon Flange Nuts


High-Strength Steel Hexagon Flange Nuts

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