Royal Blue Anodized 6061 Aluminum Nylon-Insert Hex Flange Lock Nuts

Royal Blue Anodized 6061 Aluminum Nylon-Insert Hex Flange Lock Nuts

Lightweight Custom Fastener Manufacturing for Bicycle, Racing, Robotics and Industrial OEM Applications

JUXIN FASTENERS is an industrial fastener manufacturer specializing in standard and custom-engineered fastening components for international OEM, Tier-1 and Tier-2 manufacturers.

Our royal blue anodized 6061 aluminum nylon-insert hex flange lock nuts combine a lightweight aluminum alloy body, an integrated flange and a non-metallic prevailing-torque locking insert.

The distinctive royal blue metallic appearance makes these lock nuts relevant to OEM products requiring coordinated blue hardware, visible accessory fasteners and custom-finished aluminum components.

Potential applications include bicycle accessories, mountain bike equipment, performance cycling accessories, RC racing, motorsport instrumentation, robotics, industrial automation and precision mechanical equipment.

JUXIN FASTENERS supports OEM/ODM custom manufacturing, made-to-drawing production and industrial batch manufacturing according to customer engineering drawings and technical specifications.

Our manufacturing capabilities include cold heading, cold forming and CNC machining, together with product-specific secondary operations.

 The actual manufacturing route is selected according to the approved product geometry, material condition, tolerances and production requirements.

Product Specifications and Engineering Overview

The exact availability of each royal blue size, material temper, flange geometry and nylon insert configuration must be confirmed against the current manufacturing specification.

The earlier M2–M8 catalog information should not be treated as the limit of JUXIN FASTENERS' current aluminum lock nut manufacturing range.

What Is a Royal Blue Aluminum Nylon-Insert Flange Lock Nut?

A nylon-insert hex flange lock nut is a prevailing-torque fastener that uses a non-metallic insert to resist unintended rotation when assembled with a compatible bolt.

The nylon insert is retained near the upper portion of the nut.

As the mating bolt engages the insert, controlled interference creates frictional resistance.

This locking mechanism can help resist rotational loosening under suitable operating conditions.

The integrated flange provides an enlarged bearing surface compared with a conventional hex nut of similar nominal size.

Depending on the joint design, it may reduce the need for a separate washer.

However, the flange does not automatically replace all washer functions, and the nylon insert does not eliminate the need for proper joint preload.

Why 6061 Aluminum for Lightweight OEM Fasteners?

6061 aluminum is an aluminum-magnesium-silicon alloy widely used in engineered lightweight components.

Its low density is particularly relevant to equipment where reducing component mass is an important design objective.

For an equivalent solid metal volume, aluminum has approximately 65% lower mass than carbon steel.

Actual finished nut weight depends on geometry and the nylon insert.

Potential Advantages

• Lightweight construction.

• Good machinability.

• Compatibility with specified anodizing processes.

• Integrated flange bearing surface.

• Nylon prevailing-torque locking.

• Custom geometry and thread possibilities.

• Coordinated blue appearance.

• Suitability for selected engineered accessory assemblies.

Material Temper and Mechanical Performance

6061 is an alloy designation, not a complete mechanical specification.

The material temper affects yield strength, hardness and other mechanical characteristics.

6061-T6 must not be assumed unless confirmed by the approved material specification.

Aluminum nuts generally require careful evaluation of internal thread strength, thread stripping resistance, installation torque and joint preload.

They are not automatic replacements for steel lock nuts with specified mechanical property classes.

Royal Blue Anodizing and OEM Color Matching

Royal blue anodized aluminum hardware can be relevant to manufacturers seeking a consistent metallic blue appearance across selected product components.

In performance cycling, mountain bike accessories and custom equipment, the finish may complement other blue anodized aluminum components.

Royal Blue vs. Sky Blue

Royal blue generally refers to a deeper, more saturated blue appearance than sky blue.

For SEO and product selection, these color variants should be distinguished.

However, color names are not universal technical specifications.

For OEM production, the approved physical color sample and finishing specification should control acceptance.

Anodizing and Surface Performance

Anodizing produces an oxide layer on aluminum.

Actual surface properties depend on the process type, coating thickness, sealing and operating conditions.

A blue color does not establish a particular corrosion resistance, coating thickness or wear performance.

Anodizing vs. PVD

Anodizing and Physical Vapor Deposition are different finishing technologies.

The historical product description mentions PVD, but a separate PVD treatment for this royal blue product has not been confirmed.

Any additional coating requirement should be specified in the engineering drawing or approved finish specification.

OEM Appearance Requirements

Customers may specify:

• Approved royal blue master sample.

• Surface preparation.

• Anodizing process and thickness.

• Sealing requirements.

• Gloss and texture.

• Color variation tolerance.

• Cosmetic inspection criteria.

• Surface scratch limits.

• Packaging protection.

Color consistency is particularly important for visible accessory hardware and products assembled from multiple anodized aluminum components.

Metric Thread Sizes and Engineering References

The aluminum lock nut product family has expanded to sizes up to M16.

The table below provides standard metric coarse-thread references, including the earlier catalog sizes and larger nominal diameters.

It does not confirm that every size is currently manufactured in every color.

The inch values are nominal diameter conversions only.

Metric and inch-series threads are not interchangeable.

Actual thread pitch, tolerance, nut height, flange diameter and insert configuration must follow the approved drawing.

Miniature and Compact Fastening

Smaller metric sizes may be considered for suitable compact instruments, electronics accessories, RC models and miniature robotics.

Bicycle and Lightweight Accessory Fastening

Intermediate sizes may be relevant to approved bicycle accessories, sensor brackets and lightweight equipment mounts.

Industrial Equipment Fastening

Larger sizes require particular attention to aluminum thread strength, required preload and application loads.

UNC and UNF Inch-Series References for American OEM Customers

American manufacturers may require Unified National Coarse or Unified National Fine thread specifications.

JUXIN FASTENERS supports engineering review of custom inch-series aluminum lock nut manufacturing inquiries.

These are reference thread designations for engineering inquiries.

They are not a confirmed inventory or standard production list for royal blue aluminum lock nuts.

Custom UNC or UNF production is subject to drawing review, manufacturing feasibility and agreed performance requirements.

Metric, UNC, UNF, BSW and BSF threads cannot be directly interchanged.

For example, M6 × 1.0 and 1/4-20 UNC are different thread systems.

Engineering Comparison: Aluminum vs. Steel Lock Nuts

The final fastener selection should be based on mechanical requirements rather than color or weight alone.

Bicycle Accessory Manufacturing

Bicycle accessory manufacturers may evaluate royal blue aluminum flange lock nuts for approved lightweight assemblies.

Potential applications include:

• Bicycle computer mounts.

• Lighting brackets.

• Sensor accessories.

• Fender and mudguard accessories.

• Approved bottle cage accessory brackets.

• Non-critical equipment holders.

• Lightweight instrument mounts.

Royal blue hardware may be selected to coordinate with other blue aluminum accessory components.

Bicycle Engineering Considerations

• Vibration and fatigue.

• Joint preload.

• Aluminum thread strength.

• Installation torque.

• Moisture and corrosion.

• Repeated maintenance.

• Nylon insert condition.

These nuts must not automatically replace approved fasteners in braking, steering, wheel retention or other safety-critical bicycle systems.

Mountain Bike and MTB Equipment

Mountain bike accessories may be exposed to repeated vibration, impact, dirt, moisture and maintenance.

Royal blue anodized hardware can be relevant to appearance-matched accessory products.

Potential applications include approved sensor mounts, non-critical equipment brackets, protective accessory covers and lightweight instrument supports.

MTB Engineering Requirements

Mountain bike manufacturers should verify fatigue performance, dynamic loading, corrosion exposure, thread strength and assembly procedures.

Suspension pivots, brake systems and steering connections require independently qualified fasteners.

Performance Cycling and Racing Bicycle Accessories

Performance cycling manufacturers often evaluate weight, component appearance and packaging space.

Royal blue aluminum lock nuts may be considered for selected non-critical accessories, such as instrument brackets, electronics mounts and lightweight accessory covers.

A lower component mass does not justify reduced mechanical safety margins in critical connections.

Motorsport and Racing Equipment

Motorsport equipment manufacturers may evaluate lightweight aluminum lock nuts for suitable non-structural accessories.

Potential applications include:

• Data acquisition brackets.

• Instrumentation accessories.

• Camera mounting equipment.

• Racing electronics supports.

• Non-critical equipment covers.

• Workshop fixtures.

Racing equipment may experience severe vibration, thermal cycling and impact.

Safety-critical brake, steering, suspension, wheel and restraint assemblies require separately qualified fasteners.

RC Racing and Model Engineering

Compact aluminum lock nuts may be relevant to RC racing equipment and model engineering accessories.

Potential applications include:

• Model vehicle accessories.

• Electronics supports.

• Lightweight covers.

• Small mechanical fixtures.

• Non-critical mounting assemblies.

The royal blue finish may coordinate with blue anodized RC chassis accessories and machined components.

Robotics and Industrial Automation

Robotics and automation manufacturers may require lightweight fasteners for compact auxiliary equipment.

Potential applications include:

• Sensor brackets.

• Instrument housings.

• Robotics accessories.

• Lightweight protective covers.

• Automation fixtures.

• Peripheral equipment mounts.

Production engineers should review dimensional consistency, thread tolerance, nylon insert performance, installation torque and assembly tooling.

JUXIN FASTENERS supports made-to-drawing manufacturing review for custom robotics fastener requirements.

Automotive OEM and Tier-1 Applications

Automotive manufacturers may consider aluminum nylon-insert flange lock nuts for selected non-critical auxiliary assemblies.

Potential applications include approved interior equipment accessories, instrument brackets, sensor supports and lightweight covers.

Automotive engineering requirements may include vibration, fatigue, corrosion, temperature, assembly torque and batch traceability.

These aluminum nuts are not automatic replacements for specified steel fasteners in structural or safety-critical automotive joints.

EV Electronics and Battery Pack Equipment

Potential applications include approved non-electrical battery monitoring accessories, auxiliary sensor brackets and lightweight enclosure components.

Engineering requirements include:

• Electrical isolation.

• Grounding and bonding.

• Operating temperature.

• Vibration and fatigue.

• Galvanic corrosion.

• Joint preload.

• Fire safety requirements.

Commercial aluminum nylon-insert lock nuts are not automatically suitable for high-voltage terminals, current-carrying connections or safety-critical battery retention.

Rail Transit Equipment

Potential applications include approved non-critical instrumentation brackets, interior equipment accessories and auxiliary enclosures.

Rail equipment may require specific vibration, fire, smoke, corrosion and environmental performance.

The complete fastening system must be qualified for its intended application.

Aerospace Ground Support and Maintenance Equipment

Lightweight aluminum fasteners may be evaluated for suitable ground support equipment, maintenance fixtures and workshop accessories.

Aircraft-installed fasteners require applicable aerospace specifications, material traceability and formal engineering approval.

This product is not automatically aerospace-qualified or flight-approved.

Electrical Cabinets and Power Electronics

Potential applications include:

• Control cabinet accessories.

• Instrument brackets.

• Industrial electronics housings.

• Lightweight equipment covers.

• Auxiliary equipment mounts.

Electrical grounding and bonding requirements must be evaluated separately.

Anodized aluminum surfaces should not be assumed to provide reliable electrical continuity.

HVAC Equipment

Potential applications include approved instrumentation brackets, control accessories and non-critical equipment covers.

Engineers should evaluate vibration, humidity, temperature and corrosion conditions.

Medical Equipment and Laboratory Instruments

Potential applications include approved non-patient-contact equipment brackets, instrument housings and laboratory machinery accessories.

Medical equipment manufacturers must review cleaning compatibility, contamination requirements, material documentation and applicable regulations.

This product is not inherently sterile, implantable or medical-device certified.

Construction and Industrial Machinery

Potential applications include auxiliary equipment brackets, non-structural machinery covers and instrument mounts.

Heavy-duty structural connections frequently require steel fasteners with specified mechanical properties.

6061 aluminum lock nuts should not replace such fasteners without engineering validation.

Sheet Metal Fabrication and Industrial Enclosures

The integrated flange provides a bearing surface that can be useful in suitable fabricated assemblies.

Potential applications include:

• Lightweight sheet metal brackets.

• Equipment covers.

• Instrument housings.

• Industrial enclosures.

• Control cabinet accessories.

Engineering requirements include sheet thickness, hole diameter, bearing stress, flange contact area and joint preload.

Where only one side of the sheet is accessible, blind rivet nuts or self-clinching fasteners may be more suitable.

Precision Machinery and Instrumentation

Precision machinery manufacturers may require special thread configurations, controlled flange dimensions, non-standard nut heights and custom surface finishes.

JUXIN FASTENERS supports engineering review and made-to-drawing manufacturing for suitable custom fastening projects.

JUXIN FASTENERS – Multi-Process Industrial Fastener Manufacturing

JUXIN FASTENERS is an industrial fastener manufacturer providing standard and custom-engineered fastening components for global OEM customers.

Our manufacturing capabilities include:

• Cold heading.

• Cold forming.

• CNC machining.

• Product-specific secondary manufacturing operations.

• Customer-defined surface finishing requirements.

• OEM/ODM custom manufacturing.

• Made-to-drawing production.

• Industrial batch manufacturing.

Cold Heading and Cold Forming

Cold heading and cold forming can support suitable fastener geometries where the material, tooling and production requirements justify these processes.

CNC Machining

CNC machining supports precision dimensions, special geometry and customer-specific component features.

Combined Manufacturing Processes

Cold forming and CNC machining can be used together when an approved fastener design requires multiple manufacturing operations.

For example, a suitable component may be formed first and subsequently machined to achieve specific dimensional features.

Other products may require different process routes.

The actual process used for a royal blue 6061 aluminum lock nut must be determined by engineering feasibility, material condition, geometry, tolerances and production volume.

OEM/ODM Custom Royal Blue Aluminum Lock Nut Manufacturing

JUXIN FASTENERS supports customer-specific manufacturing based on 2D engineering drawings, 3D CAD models and technical specifications.

Potential custom requirements include:

• Special metric threads.

• Custom UNC and UNF threads.

• Modified flange diameters.

• Non-standard nut heights.

• Special wrenching dimensions.

• Customer-specified 6061 material temper.

• Royal blue anodizing requirements.

• Approved color matching.

• Nylon insert specifications.

• Prevailing-torque acceptance requirements.

• Dimensional tolerances.

• Functional inspection requirements.

• OEM packaging and labeling.

• Industrial batch quantities.

All custom manufacturing requirements are subject to engineering and production feasibility review.

Manufacturing Support for OEM Engineering and Procurement Teams

Design and Mechanical Engineers

We support review of drawings, material specifications, thread requirements, flange geometry and functional requirements.

Manufacturing Engineers

Relevant considerations include installation procedures, assembly torque, tooling access and process consistency.

Production Managers

Important factors include assembly repeatability, dimensional consistency, packaging, production handling and inspection criteria.

Procurement and Supplier Development Managers

Key concerns include manufacturing feasibility, material requirements, sample approval, quality acceptance criteria and repeat production planning.

Supply Chain Managers

Long-term OEM programs require coordination of production quantities, technical revisions, packaging specifications and manufacturing schedules.

Quality Control and Engineering Verification

Depending on the approved customer specification, relevant inspection planning may include:

• 6061 aluminum material identification.

• Material temper verification.

• Thread inspection.

• Flange diameter measurement.

• Nut height measurement.

• Width-across-flats inspection.

• Nylon insert integrity.

• Insert retention.

• Prevailing-torque testing.

• Anodizing appearance inspection.

• Blue color matching.

• Coating thickness verification.

• Packaging inspection.

• Batch identification.

The actual inspection methods and acceptance criteria must be agreed for the manufacturing project.

No unverified certification, equipment capability or test result is implied.

Engineering Risks and Failure Prevention

International Standards and Engineering References

DIN 6926

DIN 6926:1983-11 is a withdrawn German standard for prevailing-torque hexagon nuts with flange and non-metallic inserts.

DIN EN 1663 and DIN EN 1666 are identified as replacement standards.

DIN 6926-style is used here as a configuration reference, not a blanket compliance claim.

DIN EN 1663

A European reference for specified coarse-thread prevailing-torque hex flange nuts with non-metallic inserts.

DIN EN 1666

A European reference for specified fine-thread prevailing-torque hex flange nuts with non-metallic inserts.

ISO 7043:2012

Specifies prevailing-torque hexagon nuts with flange and non-metallic inserts from M5 to M20, in designated steel property classes 8, 9 and 10.

These steel mechanical property classes do not automatically apply to 6061 aluminum.

ISO 12125:2012

Addresses specified metric fine-pitch prevailing-torque hex flange nuts with non-metallic inserts from M8 to M20.

It does not establish compliance for every size in this aluminum lock nut family.

ASME B18.16.6-2017 (R2022)

Covers specified inch-series prevailing-torque locknuts, including carbon steel nylon-insert hex flange configurations from 1/4 inch to 3/4 inch.

It does not automatically establish compliance for 6061 aluminum lock nuts.

NF E 25-413, NF E 25-506 and NF E 25-507

These French fastener standard references require verification of the exact edition and product scope before making a compliance or equivalence claim.

Standards Compliance Clarification

This royal blue 6061 aluminum nylon-insert hex flange lock nut is described as a DIN 6926-style product.

Actual dimensions, mechanical properties, thread requirements and functional acceptance criteria must follow the approved engineering drawing and applicable specifications.

Frequently Asked Questions

What is a royal blue aluminum nylon-insert flange lock nut?

It is a 6061 aluminum hex flange nut incorporating a nylon insert that generates prevailing torque when assembled with a compatible bolt.

What is the difference between royal blue and sky blue?

Royal blue generally describes a deeper, more saturated blue appearance. Exact OEM color requirements should be established through approved physical samples.

What aluminum alloy is used?

6061 aluminum alloy. The material temper must be confirmed.

What sizes are available?

The aluminum lock nut product family has expanded to sizes up to M16. Exact royal blue size availability must be confirmed against the current manufacturing specification.

Can JUXIN manufacture custom sizes?

Yes. JUXIN FASTENERS supports OEM/ODM made-to-drawing manufacturing subject to feasibility review.

Can you manufacture UNC or UNF aluminum lock nuts?

Customer-specific inch-series thread requirements can be evaluated. The reference table does not imply existing inventory.

Are metric and inch-series threads interchangeable?

No. Metric, UNC, UNF, BSW and BSF threads are different systems.

Is royal blue anodizing the same as PVD?

No. Anodizing and PVD are different surface treatment processes. Any additional PVD treatment requires confirmation.

Does blue anodizing increase mechanical strength?

The color itself does not establish increased strength or locking torque.

Can these nuts be used on mountain bikes?

They may be evaluated for approved non-safety-critical accessories. Critical braking, steering and wheel assemblies require qualified fasteners.

Are these suitable for motorsport equipment?

Selected non-critical accessories may be suitable after engineering validation. Safety-critical assemblies require separately qualified fasteners.

Are these equivalent to steel DIN 6926 nuts?

No automatic mechanical equivalence should be assumed.

Can nylon-insert lock nuts be reused?

Reuse depends on the approved specification and retained prevailing-torque performance.

What is the operating temperature range?

It depends on the nylon insert grade and operating conditions. No universal temperature rating is claimed without verification.

Can JUXIN combine cold heading and CNC machining?

Yes. JUXIN FASTENERS has multi-process manufacturing capabilities that can be combined when the approved product design requires them.

Can you manufacture a customer-specific royal blue finish?

Customer-defined anodizing requirements and approved color samples can be reviewed for custom manufacturing.

Request a Quote – Royal Blue Aluminum Flange Lock Nut Manufacturer

JUXIN FASTENERS provides industrial fastener manufacturing and OEM/ODM custom production for global OEM, Tier-1 and Tier-2 manufacturers.

Our manufacturing capabilities combine cold heading,

 cold forming and CNC machining with product-specific secondary operations to support a broad range of standard and custom-engineered fastening components.

For royal blue 6061 aluminum nylon-insert hex flange lock nuts, we welcome manufacturing inquiries involving custom dimensions, metric or inch-series threads, 

material specifications, color matching and industrial batch production.

We support engineering and procurement inquiries from bicycle and mountain bike accessory manufacturers, racing equipment companies, 

robotics and automation manufacturers, automotive and EV component suppliers,

 industrial machinery manufacturers, electrical cabinet and HVAC equipment manufacturers, precision instrument producers and international OEM purchasing teams.

Recommended RFQ Information

• Required metric or UNC/UNF thread.

• 6061 aluminum material and temper.

• Nut height and flange dimensions.

• Customer 2D drawing or 3D CAD model.

• Royal blue anodizing and color sample.

• Nylon insert and prevailing-torque requirements.

• Operating environment and joint loading.

• Dimensional tolerances and inspection criteria.

• Order quantity and annual forecast.

• Packaging, labeling and delivery requirements.

Our team can review your engineering specifications and provide quotation support for suitable custom OEM production programs.

JUXIN FASTENERS

Industrial Fastener Manufacturer | OEM/ODM Custom Fastener Manufacturing | Cold Heading, Cold Forming & CNC Machining | Made-to-Drawing Production

Email: info@juxinfasteners.com

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

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.