Bushing Thread Brass M3 and M4 set of 170

These M3 & M4 female thread nuts are made from high-quality brass, perfect for 3D printer parts, these threaded inserts provide a strong, reliable hold and are easy to install. With a range of sizes available, they’re suitable for a variety of thermoplastic projects.

20x M3x6x5
20x M3x8x5

20x M4x4x6
20x M4x5x6
20x M4x6x6
20x M4x7x6
20x M4x8x6

10x M4x8.1x6.3
10x M4x8x6.5
10x M4x8x7??? ??????