Chamfer the hole with a standard countersink (82°-100°). Note: Drill is oversize - see charts for proper dimensions. This rigorous process includes testing internal and external threads (proof and pull-out), torque-out, locking torque (where applicable), non-destructive testing, and magnetic permeability testing.ĭrill out old threads with a standard drill. Available in stainless steel, Keenserts are manufactured and tested according to MIL-I-45914 rev A. Keyserts are offered individually or in kits. They are also ideal for replacing damaged or stripped threads and have the advantage of enabling replacement with the same size thread. M8 x 1.25 class 6H Thread Tap size, Min 9.5 deep. 0.70 class 5H Internal thread ( locking) M8 x 1.25 class 4H External Thread with modified minor diameter. Locking keys must be driven down into the parent material during installation, providing a positive mechanical lock against rotation. See Installation Data table below for the appropriate tap-drill size.
KEENSERT TAP DRILL CHART PDF
Commercial-grade Keyserts are available in carbon and stainless steel, both inch and metric series, and are supplied in Thinwall, Heavy Duty, Extra Heavy Duty, and Solid styles. See PDF Document in Download window for available sizes and. Key Inserts are installed using standard drills and taps, but the required tap-drill size is slightly larger than normal for that OD thread size. Featuring a key-locking action that prevents rotation due to vibration or torsion, commercial-grade Keyserts and Keenserts can be used in a wide range of materials and applications. Designed to repair damaged threads or for use in original equipment, Keyserts and Keenserts provide easy installation and versatility. this Keensert may be installed in sheet material as thin as 1. Commercial-Grade and Mil-Spec Solid Threaded Inserts, Tooling, and Kits Keysert and Keensert Thread Repair Inserts. This MS51830-102 Is used in electronic and aerospace applications where size and strength are critical. Example: air traffic controller Search Keysert and Keensert - Howmet Aerospace KEENSERTS may be used in alloys, light materials, steel and cast iron to increase the strength of the thread in these materials.
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