5/16" 3/8" 1/2" UNF CAP SCREWS BLACK COLOUR HIGH TENSILE 12.9 ALLEN KEY BOLTS
UNF Socket Cap Screws. UNF socket cap screws. Allen key size: 1/4". Allen key size: 5/16". Bolts are uncoated, self colour. High tensile grade 12.9 steel. Allen key size: 3/8". Coarse Pitch Bolts & Screws.