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 M3, length 18 mm, indicative pack size 500 pcs, metric thread pitch 0.5 mm, head diameter 5.5 mm, wrench width 2.5 mm, full-thread length 18 mm. No REACH SVHC substances above 0.1 percent. Supplied under manufacturer part number 12912030181, EAN 5711160113879, HS code 7318.14, country of origin Germany.