M2-M5 Black Stainless Steel Allen Hexagon Hex Socket Head Cap Screw Bolt Set Kit

Screw, nut and washer: 304(A2-70) stainless steel. screw, nut and washer : black zinc plated. screw 340pcs + nut 340pcs + washer 340pcs + key 4pcs 15 size screw, total 285pcs key: carbon steel. Set B : total 1020pcs + 4pcs key (free).

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