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About Threaded Inserts
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Choose the right threaded insert for your application and learn how to install it securely.
Screw-Locking Helical Threaded Inserts
 |
Pronged |
The irregularly shaped threads tightly grip screws to prevent them from loosening or backing out under vibration. Use these inserts to create or repair threads in pumps and other machinery that shakes and rattles. Also known as Heli-Coil inserts.
Installation requires a drill bit, a helical insert tap, and an installation tool.
Pronged—The prong attaches to an installation tool for precise control as you drive inserts in. Remove the prong with a punch or break-off tool before inserting a screw.
18-8 Stainless Steel—The choice for wet and outdoor environments, these inserts resist rust and mild chemicals.
Inserts | Through-Hole Taps | Closed-End Hole Taps | Installation Tools | Prong Break-Off Tools | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | Specs. Met | Pkg. Qty. | Pkg. | Each | Each | Each | Each | |||||||
Pronged | |||||||||||||||||
18-8 Stainless Steel | |||||||||||||||||
| 7/16"-14 | 0.875" | 29/64" | 0.453" | MS21209C7-20, NASM21209 | 1 | 90296A138 | 00000 | 91709A108 | 000000 | 91709A455 | 000000 | 90261A158 | 0000000 | 92955A202 | 0000000 | ||
