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Red Copper Outer Hexagonal Screw Nut Flat Washer Set / Electrolytic Bolt M3-M8
Red Copper Outer Hexagonal Screw Nut Flat Washer Set / Electrolytic Bolt M3-M8
https://www.bizrate.co.uk/homehardware/red-copper-outer-hexagonal-screw-oid33004727254.html