Custom hex flange nuts feature an integrated hex nut and flange design; the built-in bearing surface eliminates the need for separate washers and ensures more uniform load distribution. Anti-slip serrations on the flange face enhance vibration and loosening resistance while protecting the workpiece surface from damage, making them ideal for machinery, automotive applications, and other high-vibration environments.

 

JOYEAR offers customization of materials, thread specifications, and surface finishes, with production capabilities covering carbon steel, stainless steel, and more. Flange dimensions and strength grades can be adjusted according to customer drawings to meet fastening requirements for non-standard equipment and suit a wide range of demanding assembly scenarios.

 

Custom hex flange nuts feature a distinctive two-part integrated appearance: a standard hexagonal head combined with an outward-extending circular flange at the base. Many models come with fine serrated teeth on the flange bottom. Their compact one-piece structure eliminates assembled gaps. We can adjust flange diameter, hex size and profile according to your requirements, delivering bespoke shapes to fit unique assembly spaces.

Hex flange nuts are one-piece fastening components combining a hex nut body with an integrated circular flange.

Designed for OEM Requirements

Many industrial customers require flange nuts beyond standard catalogue dimensions.

Joyear supports:

Standard Compatible Production

For European customers, Joyear manufactures flange nuts according to common industrial standards:

• DIN 6923
• ISO 4161
• Customer drawings

DIN 6923 defines hex flange nuts with specifications for:

• Thread size
• Flange diameter
• Nut height
• Dimensional tolerances

DIN 6923 Standard Size Reference

Plain Hex Flange Nuts

Features：

• Smooth bearing surface
• Protects assembled surfaces
• Suitable for general industrial applications

 

Applications：

• Electrical equipment
• Machine assembly
• Sheet metal products

Serrated Hex Flange Nuts

Features：

• Anti-loosening effect
• Improved vibration resistance

Applications：

• Automotive
• Heavy machinery
• High vibration environments

JOYEAR supplies custom hex flange nuts in multiple materials, including carbon steel and 316 (A4) stainless steel versions. Heat-treated carbon steel flange nuts deliver high strength for conventional indoor heavy-load applications. 316 (A4) stainless steel offers outstanding corrosion resistance, suitable for humid, acidic and alkaline harsh environments. JOYEAR can adopt matched material processes as required to ensure stable mechanical properties and satisfy demands across various working conditions.

Material selection depends on:

• Strength requirements
• Corrosion environment
• Assembly conditions

Stainless Steel Flange Nuts

 

Stainless Steel 304 (A2)

Applications:

• Outdoor equipment
• Electrical products

 

Stainless Steel 316 (A4)

Applications:

• Marine equipment
• Chemical environments

JOYEAR offers a variety of surface coating options for custom hex flange nuts, including zinc plating, black oxide and zinc flake coating, with custom coatings also available. Zinc plating provides basic rust protection; black oxide delivers a dark finish ideal for low-oil working conditions, while zinc flake coating achieves superior corrosion resistance. JOYEAR recommend suitable coatings based on service environments to enhance anti-corrosion and wear resistance for diverse assembly and harsh outdoor applications.

JOYEAR's Custom Hex Flange Nuts come with optional serrated anti-loosening structure, various materials and surface treatments. They serve a wide range of scenarios including automotive components, industrial machine frames, electrical enclosures, sheet metal assemblies, new energy equipment, construction hardware, rail transit and pipeline fastening.

Automotive Industry

JOYEAR custom hex flange nuts serve automotive vehicle components, brackets and assembly structures. Built-in flanges remove the need for separate washers, and serrated versions provide reliable anti-loosening performance. With stable strength, they resist vibration during operation and secure joints to maintain long-term reliability of automotive assemblies.

Industrial Machinery

Our custom hex flange nuts fasten machine frames and mechanical equipment. The broad flange spreads clamping force to prevent workpiece deformation. Available in various materials and strength classes, they withstand heavy loads and vibration, keeping machine frames stable for long-term heavy-duty operation.

Electrical Enclosures

Custom hex flange nuts assemble electrical cabinets and control panels. Their flanges evenly distribute tightening force to avoid damaging thin sheet metal. Optional anti-corrosion coatings suit indoor electrical environments. They hold panels firmly and prevent vibration-induced loosening to protect electrical components.

Sheet Metal Assemblies

These custom hex flange nuts join fabricated structures and metal products in sheet metal assemblies. The flange enlarges the bearing area and protects thin sheets from deformation. Selectable materials and coatings deliver great locking performance against vibration for stable sheet metal connections.

Quote and confirm order quantity, specify all the details including trade terms, payment terms, type of package, etc.

Strictly produce the goods as per the drawings and first samples.

Packed well after final inspection and ship to customers.

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