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Helical Thread Inserts
4-40 Threaded Prewinder Tool
Threaded Prewinder Installation Tool: 4-40 UNC
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Threaded Prewinder Tool for 4-40 Helical Inserts
Use with Internal Thread Size:
For use with:
Free Running & Screw Locking Inserts
Helicoil, Recoil and any other standard Helical Screw Thread Inserts
Our Prewinder Tools make quick work of large volume installations. The Prewinder temporarily reduces the diameter of the insert by compression so that it will install easily into the tapped hole. As the insert leaves the Prewinder and enters the tapped hole, it is prewound and in the correct lead and pitch to facilitate a smooth installation.
Threaded Mandrel Prewinders are especially recommended for the successful installation of screw locking inserts and free running inserts having a fine thread pitch.
Unlike our competition, both the Mandrel
the Prewinder portions of the tool are made from Carbon Steel - built to stand the test of time and power through your toughest jobs. Proudly made in the USA.
Need additional inserts? Looking for our complete kits?
For a comprehensive list of our available kits, inserts, and tools - please visit our
Helical Thread Insert
SAME DAY SHIPPING IF ORDERED BY 3PM CST.
4-40 Complete Helical Thread Repair Kit (1xD, 1.5xD, 2xD)
4-40 Helical Installation & Tang Break-Off Tool
Helical Thread Repair Kit: 4-40, 0.168" (1.5xD) Length
TERMS & CONDITIONS
W328S8900 S Oak Tree Dr
P.O. Box 504
Mukwonago, WI 53149 US