Hex Bolt DIN931 DIAMETER: M20-M48 LENGTH: 20mm~6000mm GRADE: 4.8, 5.8, 6.8, 8.8, 10.9, 12.9 Hex Bolt DIN931DIAMETER: ... 10.9, 12.9 SURFACE FINISHED: BLACK, ZINC PLATED, HDGHex bolt DIN933 DIN931 DIN6914Bolts and nuts with many varieties and high quality exported ... bolts, washers, screws, pins, rivets, anchors per international standard IFI, ANSI, DIN, ISO, JIS, BC etc. and non-standard parts according ...