99.9% Pure Copper Hex Socket Bolts Button Head Screws M2/M2.5/M3/M4/M5/M6/M8

Drive Type: Hex Socket. Material: Copper. /Thread Size: M3-0.5, M4-0.7, M5-0.8, M6-1.0, M8-1.25. Thread Style: Fully Threaded. Thread Direction: Right Hand.

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