Keyserts are solid, one-piece, key-locking inserts used to repair damaged threads or for use in original equipment. The Keysert locking keys provide a positive mechanical lock that prevents rotation due to vibration or torsion. Keyserts are available in carbon or stainless steel, both in inch and metric series. Thinwall, heavy-duty, extra heavy-duty, and solid insert styles are available separately or in kits containing a range of sizes. Installation tools are also available separately or in a range kit.
Recoil Heavy-Duty Key Locking Insert, Style: Locking, Unit of Measure: Inch, 5/16-18 Internal Thread, 3B Internal Thread Class, 1/2-13 External Thread, 2A External Thread Class, Body Material Detail: C1215 Steel with 302 Stainless Steel Keys Material, Finish Detail: Zinc Phosphate and Ferrocote 364-3 Oil, 0.43 Inch Body Length, Recommended Installation BR-72312, Tap Drill Size: 29/64 Inch, 0.51 Inch Counter Sink Diameter, 1/2-13 Thread Tap Size, 2B Thread Tap Class, 0.50 Inch Min Thread Tap Depth, 13/32 Inch Removal Drill Size, 3/16 Inch Removal Drill Depth