100-300Pcs M2 M2.5 M3 M4 M5 M6 M8 Heat Set Threaded Insert Brass Nut Hot Melt Knurled Inserts Double Twill Embedment Copper Nuts

100-300Pcs M2 M2.5 M3 M4 M5 M6 M8 Heat Set Threaded Insert Brass Nut Hot Melt Knurled Inserts Double Twill Embedment Copper Nuts

Aliexpress UK