Wheel Lug Nuts 1/2-20 Thread Black Finish Grade 10 Hardened Steel for Light Trucks
Manufacturing standard：ISO, GB, JIS, DIN, BS and ANSI standards, or drawings provided by customers.
Materials： iron, carbon steel, alloy steel, copper, stainless steel, plastics, high-temperature alloy, copper alloy, nickel-base alloy, high-strength alloy, corrosion-resistant alloy, etc.
Process： cold heading, punching, turning, milling, wire cutting, etc.
Treatment/Finishing: Brushing、Anodizing、Zinc Plated、Nickel Plated、Sn Plated.
Requirements： No Burrs、Scratches、Dents、Pits
Application： Structural Steel; Metal Building; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating
Packing：bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand
Wheel lug nuts are critical fasteners in vehicle assembly, ensuring a secure connection between the wheel and hub. Despite their small size, their mechanical strength and precision directly impact road safety and overall performance. At TAIMING, a leading manufacturer and supplier of fasteners, our technical engineers emphasize that selecting the right lug nut grade, thread specification, and surface coating is essential in both OEM production and aftermarket repair.
One of the most commonly used specifications is M12x1.5, preferred for passenger cars due to its balance of strength and thread engagement. For North American models, the 1/2″-20 UNF thread remains standard across light trucks and older vehicles. TAIMING recommends Grade 8 or Grade 10 carbon steel for high-torque applications, offering superior shear strength and resistance to vibration-induced loosening. These grades meet international standards such as DIN 985 and ISO 898-2, ensuring global compatibility and durability.
The choice of surface finish also plays a key role in the longevity of wheel lug nuts. For humid or salted road environments, zinc-coated and black oxide finishes provide a cost-effective barrier against corrosion. TAIMING’s lug nuts are tested for over 72 hours in salt spray conditions, exceeding basic industry requirements. Our lab also performs fatigue and hardness testing to maintain consistency across batches, an essential factor in large-volume supply for distributors and automotive OEMs.
Installation torque should always match the wheel manufacturer’s recommendation. Over-tightening can strip threads or fracture the stud, while under-torquing may lead to wheel detachment. TAIMING provides torque chart guides alongside all 1/2-20 and M12x1.5 wheel nut shipments to support safe assembly practices.
For clients looking to optimize procurement, we suggest evaluating batch traceability, coating adhesion, and exact tolerance reporting in addition to basic price factors. At TAIMING, our in-house production enables full customization — from head style (acorn, flange, or spline) to special threading or marking requirements.
In summary, choosing the right wheel lug nut is not just about thread fit, but about material grade, coating, and consistent quality control. With TAIMING’s engineering support and global logistics network, sourcing reliable lug nuts becomes a streamlined process for distributors, assemblers, and retailers worldwide.
