... will make certain kinds of clamping operations unnecessary. In addition to eliminating some clamping, the creative use of drywall ... Phosphated,Zinc,Yellow Zinc,Packing: Rugular Collated Screws Screw Types: Drywall Screw, Chipboard Screw, Subfloor Screws, and Decking ScrewHead Types: Bugle ... : Black or Gray Phosphated, Zinc Plated, Decromet, Ruspert,Screw Guns Types: Hilti, Makita, etc This is Just an ...