M4x0.7 HSS Die Nut L2120175 This tough and durable coating

This tough and durable coating prevents rust and corrosion on properly prepared surfaces

GMC/Hummer/Oldsmobile

5mm Part Off Insert-14 Chipbreaker  First choice for stainless steel

Fits 1969 to 1991 Small Block Chevy Engines

This kit comes complete with the gaskets and mounting hardware

M4x0.7 HSS Die Nut L2120175 This tough and durable coatingM4 x 0. 7 HSS Die Nut Die nuts are suitable for repairing damaged or crossed threads or clearing swarf from threads. When using a die nut it is not necessary to apply the same level of precise initial alignment required to form a new thread (i. e. with a die) as the nut will follow the existing threads. They are supplied as hexagon allowing them to be turned by a standard spanner or adjustable wrench without the need for a die stock.