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

50 Pcs Brass Threaded Insert M3x4x5 mm for Plastic Components

50 Pcs Brass Threaded Insert M1x2x2 mm for Plastic Components

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

50 Pcs Brass Threaded Insert M1.2x2.5x2 mm for Plastic Components

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

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

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