Unbrako DIN 912 socket-head cap screw with cylindrical head, grade 12.9, black finish. Socket screws CH grade 12.9 black (Fortification / Screws with inner hexagon / Cylindrical head socket screws CH). Principal data: thread diameter M2, length 8 mm, indicative pack size 200 pcs, metric thread pitch 0.4 mm, head diameter 3.8 mm, wrench width 1.5 mm, full-thread length 8 mm. Supplied under manufacturer part number 912000200020008, HS code 7318.15, country of origin Ireland.