... between 200, 201,202, 304 , 316(A2, A4), 304L, 316L, B8, B8M etc. Our mostly products are stainless steel standard fasteners ... , 304 , 316(A2, A4), 304L, 316L, B8, B8M etc. such as all spec. threaded rods (threaded studs), anchor bolts, U-bolts; Carriage bolts ... in construction, machine, chemical produce, traffic product, and environment engineering. B8 B8M stainless threaded rod