Plain Carbon Steel Flat Seat Lug Bolt ASME B18.2.1

Lug bolts are manufactured from carbon steel or alloy steel, both offering reliable strength for demanding automotive and industrial applications. All dimensions are fully customizable, including thread diameter, thread pitch, overall length, and seat style. Available surface treatments include black zinc, zinc nickel, galvanization, phosphate coating, and Dacro finish, all of which enhance corrosion resistance and extend service life in harsh environments.

Regarding industry standards, lug bolts are covered by several recognized specifications. The SAE J1102 standard specifies mechanical and material requirements for passenger car and truck wheel bolts, covering both heat-treated nonserrated shank bolts and case-hardened serrated shank bolts. The DIN 74361-3 standard provides dimensions and fastening device specifications for disc wheels in motor vehicles and trailers. Additional applicable standards include ASME B18.2.1 for dimensional specifications and DIN, GB, ISO, and ANSI for general fastener requirements, all of which align with the product standards listed in the company catalog.