Astm A320 Review L7M covers stainless steel explosives for low temperature use. This standard covers laminated, forged or stress hardened bars, bolts, screws, studs and cap bolts used for weight containers, valves, ribs and fittings. According to ASTM A193, unless otherwise noted, the 8UN chain adjustment is indicated on bolts larger than 1" in diameter. We are a manufacturer, supplier and exporter of L7M ASTM A320 Hex Stud Bolts and Nuts. in India. Available in grades L7, L7M and L43.

Bigboltnut, an industry leader, manufacture high-quality fasteners for many industries. We offer high-tensile fasteners, stainless steel fasteners, bolts, nuts, hex bolts, and washers with a commitment to excellence. Our quality and commitment to unwavering client service have made us a respected organisation on the global map.

Bigboltnut's high-quality products ensure durability and performance in the toughest applications. We provide high-class fastening solutions for construction, manufacturing, automotive, and other industries to assure project success and safety