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,...