Material

screw, nut and washer: 304(A2-70) stainless steel

hex key: carbon steel

Surface

black plated

Box include

Set A : total 285pcs

15 size screw, total 285pcs:

Set B : total 1020pcs + 4pcs hex key (free)

screw 340pcs + nut 340pcs + washer 340pcs + hex key 4pcs