80pcs THREADED HEX DRIVE INSERT FIXING WOOD SCREW M4/5/6/8/10 INSERTS NUTS KIT

M4 10/20pcs. -Screw-in insert nuts have an external thread and can be screwed in with a hex key wrench. Type: Hex socket screw-in. 1X80PCS Insert Nuts. -80pcs insert nuts are enough for using. Material: Zinc alloy.

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