RS PRO Brass Threaded Insert diameter 4 mm 4.78 mm

RS PRO range of expansion inserts which are suitable for use with most plastic materials, using either through or blind holes. These threaded inserts feature a knurled outer diameter with expansion slots that prevent rotation or loosening due to vibration and ensures consistent self-locking pressure on the fixing screws.

Threaded inserts are designed to be placed into existing holes to provide a threaded receptacle so that screws, bolts or other fixings can be installed. RS PRO have a great range of threaded inserts made from various materials including brass and steel with zinc plated finishes.

Options include:
Threaded Inserts available with Flush Head
278-534 - Insert M3 flush
278-540 - Insert M3.5 flush
278-556 - Insert M4 flush
278-562 - Insert M5 flush
278-578 - Insert M6 flush

Threaded Inserts available with Flange Head
278-584 - Insert M3 flange
278-590 - Insert M3.5 flange
278-607 - Insert M4 flange
278-613 - Insert M5 flange
278-629 - Insert M6 flange