230Pcs THREADED HEX DRIVE INSERT FIXING WOOD SCREW INSERTS NUTS M4/M5/M6M8/M10

230PCS Insert Nuts Kit. Quantity：230PCS. M4 8 /30pcs. M4 10/60pcs. M10 15/3pcs. M10 25/2pcs. M5 10/45pcs. -Screw-in insert nuts have an external thread and can be screwed in with a hex key wrench.

eBay