Fasteners, Bolt, Screws manufacturer / supplier in China, offering ASME B18.31.2 ANSI 5/8" 3/4" 7/8" 1" Unc Unf Double End DIN975 976 Full Stud Bolt HDG Black Zinc Galvanized 4.8 8.8 A2 A4 304 Stainless Steel Bar Thread Rod, 7504K Hex Washer SDS Blue Yellow Glavanized Ruspert C1022A Carbon Bimetal Stainless Steel Self Tapping Drilling Roofing Screw with EPDM PVC Rubber Bonded Washer, Malaxy Quality Flange Head Wafer Double Countersunk Head Torx Yellow Zinc Blue Zinc Anti-Crack Thread Wooden Deck Timber Structural Durable Construction Screws and so on.