Stainless Steel B8M Fasteners

The B8M fastener designation refers to products made from AISI 316 stainless steel, a molybdenum-bearing grade that offers superior corrosion resistance compared to 304 series stainless. This makes them particularly suitable for chloride environments, offshore applications, and chemical processing equipment. Our fasteners are manufactured in accordance with ASTM A193 Grade B8M standards for bolts and studs and ASTM A194 Grade 8M standards for nuts. We supply both Class 1 (strain hardened) and Class 2 (solution annealed) variants, depending on mechanical property requirements. These fasteners combine strength, resistance to stress corrosion, and reliable performance under pressure.

At Panache Industries, we stock SS B8M fasteners in various sizes—from M6 to M64, and even larger custom sizes upon request. Customers can choose between different thread types, head styles, and finishes depending on the application. Whether you need standard SS 316 B8M bolts and nuts or customized threaded components, our machining capabilities ensure precision, durability, and compliance with global standards. All fasteners undergo stringent testing and come with full traceability and quality documentation.