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

100pcs M6 Threaded Inserts Brass Heat Set Insert M6x5mm, OD 8mm Knurled Nuts

100 PCS M3 Threaded Insert x 4mm x 5mm Heat Set Inserts, 3D Printing Gold

50pcs M6 Threaded Inserts Brass Heat Set Insert M6x5mm, OD 8mm Knurled Nuts

M4 Threaded Heat Insert Brass Knurled Nuts M4x16x6mm Plastic 3D Printing 20 Pcs

50pcs M5 Threaded Inserts Brass Heat Set Insert M5x10mm, OD 7mm Knurled Nuts

50 Pcs Brass Threaded Insert M5x5.8x7.1 mm for Plastic Components

50 Pcs Brass Threaded Insert M2x4x3.5 mm for Plastic Components