China wholesale DIN6921 ISO4162 Hexagon Flange Bolts and Screws to Sierra Leone Manufacturers

Hexagon Flange Screws and Bolts Standard: DIN6921, ISO4162, ISO8102, ASME B18.2.3.9M, ASME B18.2.1, Metric Size: M6-M20 with various lengths Inch Size: 1/4”-3/4” with various lengths Material Grade: Carbon Steel, Alloy Steel, Stainless Steel covers grade ISO 898-1 4.8, 8.8, 10.9; SAE J429 Grade 5, 8; ASTM A193 B7, A320 L7; ASTM F593 A, B, C, D, E, F, G, H; ISO 3506 A2-70, A4-70 Finish: Plain, Black Oxide, Zinc Plated, Hop Dipped Galvanized, Dacromet, etc. Packing: Bulk about 25 kgs each carton, 36 cartons each pallet Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports Please feel free to contact us for more details.