We are proud to introduce ourselves as the Pioneers in Fluoropolymer PTFE Fluorocarbon Coated Fasteners, Studs, Bolts, Nuts, Washers, Screws. Stud & Bolts :ASTM A 193 : GR B7 , B7M , B 16 , L7 , B8 , B8M , SS 306 , SS 316 Nuts : ASTM A 194 : GR 2H ,...