DIN931 DIN934 bolt 1. Material: 35k,q235, c1010 2. Surface: plain, black, zinc plated 3. Grade,6.8,8.8. 12.9 DIN931 DIN934 bolt 1. Material: 35k,q235, c1010 2. Surface: plain, black, zinc plated 3. Grade,6.8,8.8. 12.9 DIN931&DIN934 boltHex bolt 8.8 din933 and din931 black1) Hex bolt DIN933/DIN931 ISO4017/ISO4014, DIN960/DIN9612) Size: M6-M30, length: 12mm-300mm3) Grade: 4.6 4.8 5.6 5.8 6.8 8.84) ...