DIN931 DIN933 HEX BOLT / SCREW DIMENSION:ALL CL.4.6, 4.8, 6.8, 8.8, 10.9, 12.9 FINISH: PLAIN, BLACK, ZP CR6+/CR3+, HDG, WAX DIN931 DIN933 HEX BOLT / SCREWDIMENSION: ALLGRADE: CL.4.6, 4.8, 6.8, 8.8, 10.9, 12.9FINISH: PLAIN, BLACK, ZP CR6+/CR3+, HDG, WAX DIN933