The OEMTOOLS Thread Repair Insert – UNC 5/16" – 18 (10 Piece) is designed for rethreading in many common materials such as alloys, steel and plastics. Specified for automotive, military, aviation and many other uses, the inserts are made from high quality 18-8 stainless steel wire with a diamond-shaped cross section wound to the shape of a spring thread. These (10) high-grade replacement inserts are designed for use with OEMTOOLS 25604 Thread Repair Kit – UNC 5/16" – 18. • Returns threads to original size • Creates a permanent and wear-resistant thread • Provides a superior thread with a larger contact area for improved holding power • Designed for automotive, motorcycle and various thread repair jobs • Long lasting durability •
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