2pcs M4x16mm 10.9 Grade Hex Socket Reverse Left Hand Thread Screw Bolt Black

2pcs M4x16mm 10.9 Grade Hex Socket Reverse Left Hand Thread Screw Bolt Black

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Description
Made of 40Cr Steel material black oxide finish hex socket head left hand reverse thread design. Fixing component industrial and construction fasteners. To tighten a reverse threaded screw you turn it counter clockwise.To loosen a reverse threaded screw...
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