M2-M72 DIN931 933 metric thread A320 L7M hex bolt alloy bolt
ASTM A320 L7M Grade AS Fasteners are commonly used in oil and gas exploration and processing equipment – piping, piping and heat exchangers.
Our ultimate total quality management allows us to provide our customers with trouble-free products, and our entire line of ASTM A320 Grade L7M Alloy Steel Studs undergo rigorous parametric checks to ensure quality. The ASTM A320 L7 specification covers alloy steel bolting materials such as rolled, forged or strain hardened bars, bolts, screws, studs and studs for pressure vessels, valves, flanges and fittings for low temperature service. Each alloy shall meet the specified chemical composition requirements.