M4 / 4mm GRADE 12.9 ZINC SOCKET CAP SCREWS, ALLEN KEY BOLTS HEX HEAD DIN 912
£5.61
Allen key sizes: M2=1.5mm key, M3=2.5mm key, M4=3mm key, M5=4mm key, M6=5mm key, M8=6mm key. High tensile Zinc 12.9 Grade, DIN 912. Socket Cap Allen Bolts. High tensile Zinc 12.9 Grade. Depth of Head - 4mm.
