Threading Insert, Free Running, UNF, Right Hand Cut, Stainless Steel, Plain, 18-8 Grade

Heli-Coil inserts are packaged according to thread size for easy handling and display. The inserts are contained in a sturdy, clear, plastic display box and marked with partnumber and thread size. The lg of the inserts in in and metric packages is 1–1/2 times the dia of the bolt. This provides sufficient strength in most applications.Spark plug hole inserts are packaged in lgs corresponding to the various spark plug reaches. For shorter or longer lgs and volume applications.