Wheel Nut

Wheel Nut — Automotive Wheel Fastener | ISO 7575 / DIN 74361 | Flanged & Serrated Design

Wheel nuts are specialized fasteners engineered for secure wheel-to-hub mounting in automotive, truck, trailer, and heavy equipment applications. Manufactured to ISO 7575, DIN 74361, and SAE J1965 standards, our wheel nuts feature flanged or serrated designs that prevent loosening under vibration and dynamic loads. Available in M12 to M22 sizes with hex, spline, and conical seat configurations, our wheel nuts are produced from high-strength carbon steel (Grade 8.8/10.9) with premium surface treatments to withstand road salt, moisture, and temperature extremes.

Material & Specifications

Size Range	M12 to M22 / 1/2″ to 7/8″
Standard	ISO 7575, DIN 74361, SAE J1965, JIS D4606
Material	Carbon Steel (Grade 8.8, 10.9), 40Cr Alloy Steel, 304/316 Stainless Steel
Surface / Coating	Electroplated Zinc (Blue/White, Yellow/Color), Dacromet, Multi-Element Alloy Co-Permeation, Hot-Dip Galvanized, Chrome Plated
Seat Type	Conical (60°), Spherical (Radius), Flat, Mag Seat
Head Type	Hex, Spline (tuner), Hex with Flange, Serrated Flange

Surface Treatment & Zinc Coating Quality

Wheel nuts face some of the harshest service conditions of any fastener — road salt, water, temperature cycling, and impact loads. Our premium coating options ensure long-lasting performance:

• Hot-Dip Galvanizing (HDG) — Thick zinc layer (50-120μm) for heavy-duty truck and trailer wheel nuts operating in corrosive road salt environments. Compliant with ISO 1461 / ASTM A153. Salt spray resistance: 500-1,000+ hours.
• Electroplated Zinc Blue-White (Zn Blue/White) — Bright silver-blue finish with 5-12μm zinc layer. Cr3+ trivalent passivation, RoHS compliant. Common finish for passenger vehicle wheel nuts requiring clean appearance and moderate corrosion protection.
• Color Zinc / Yellow Zinc (Iridescent Passivation) — Golden-iridescent passivation providing 150-300 hours salt spray resistance. The automotive industry standard for wheel nuts, offering excellent corrosion protection with visual identification capability.
• Dacromet Coating — The premium choice for automotive wheel nuts. Water-based zinc-chromium flake coating with NO hydrogen embrittlement risk. 1,000-1,500 hours salt spray resistance. Used by OEM manufacturers for vehicles operating in winter road salt conditions. Silver-gray metallic finish.
• Multi-Element Alloy Co-Permeation — Zinc-aluminum-magnesium alloy layer providing 2,000+ hours salt spray resistance with self-healing properties. The ultimate corrosion protection for commercial vehicle wheel nuts in extreme environments. Used in mining trucks, military vehicles, and coastal transport.

Key Features

• Flanged and serrated designs prevent loosening under vibration and dynamic wheel loads
• Conical (60°) and spherical seat options match all standard wheel hub configurations
• High-strength Grade 8.8/10.9 material ensures reliable clamping force under extreme loads
• Spline (tuner) design available for aftermarket wheels with narrow lug holes
• Precise thread tolerance (6g/6H) for smooth installation and torque consistency

Applications

• Passenger cars, SUVs, and light trucks
• Commercial trucks, buses, and trailers
• Heavy equipment and agricultural machinery
• Motorcycle and ATV wheels
• Aftermarket and custom wheel applications

Why Choose BoltNutsPlus?

• ISO 9001:2015 Certified Manufacturing — consistent quality you can trust
• 15+ Years of Export Experience — serving 40+ countries worldwide
• Full Traceability — material certificates (EN 10204 3.1) and test reports included
• Custom Packaging & OEM/ODM — your brand, your specifications
• Third-Party SGS / Bureau Veritas Inspection Available
• 24-Hour Quote Response — same-day reply for urgent requirements