Carbon Steel Fasteners

Carbon steel fasteners have high strength and are used for bolted connections in oil and gas pipelines, structural joints, shipbuilding, automobiles, and more. HT PIPE offers a full line of high strength carbon steel bolts, screws, studs, threaded rods, nuts, washers, fittings and custom bolt assemblies.

Carbon steel fasteners are often coated with industrial PTFE (short for polytetrafluoroethylene) in applications that require high strength and corrosion resistance and are economically viable. SAE-AISI 1018, 1020, 1040, 1045/CK45 are common carbon steel grades used to produce these fasteners. Industry specifications such as ASTM A36, A193, A194, A307, A354, A449, A540, A563, F1554 and SAE J429 cover high strength carbon steel fastener grades.

Carbon steel is defined as any steel with a carbon content not exceeding 2.1% by weight. As the carbon content increases, the ductility of the steel decreases, and carbon steel bolts become harder and increase in strength after heat treatment.