Gibson Stainless 2003, 3/8", 1/2" Screw, 316 Stainless Steel, Beam Clamp, 1pc. Gibson Stainless 5150, 1-1/2", 316 Stainless Steel, Conduit to Strut Clamp, 1pc. We have new products in manufacturer boxes, as well as loose and shelf-worn quality products to save you even more money.