Our mostly products are stainless steel standard fasteners, you can choose mainly materials between 200, 201,202, ... 304 , 316 Our mostly products are stainless steel standard fasteners, you can choose mainly materials between 200, 201,202, ... -bolts; Carriage bolts, hex bolts & hex nuts, heavy nuts, nylon lock nuts, flat washers, spring washers etc. Other products include stainless steel round bars ...