Heat Set Threaded Brass Inserts 10pcs M2 M2.5 M3 M4 M5 M6 Great For 3D Printing

20 Pcs Brass Threaded Insert M3x5.7x4.6 mm for Plastic Components

28 Pcs M4 x 8mm l x 6mm OD Pure Brass Heat Set Threaded Insert

70 Pcs Brass Threaded Insert M4x8.1x6.3 mm for Plastic Components

40 Pcs Brass Threaded Insert M4x8.1x6.3 mm for Plastic Components

220Pcs M2-M6 Brass Heat Insert Nut Set Thread Knurled Double Twill Embedment Nut

20 Pcs Brass Threaded Insert M4x4x6.31 mm for Plastic Components

20 Pcs Brass Threaded Insert M1.4x6x2.3 mm for Plastic Components