... PA 3.Nickel plated or stainelss steel 4.competitive price index plunger Index plunger, Indexing plunger, knob plunger, spring plunger,pull ring ... M20 thread are available-with 90 degree locking rest position.Index plungers are used in a wide range of applications ... for locating, positioning, indexing and positive locking. Index plungers are used in a variety of industries:Machine and ...