Big-Sert Oversized Kits
PROFESSIONAL THREAD REPAIR SYSTEM
SCREW THREAD INSERTS AMERICAN & METRIC SIZES
TIME-SERT® is a thread renewal system
Easily repair stripped or damaged threads
BIG-SERT OVERSIZED METRIC THREAD REPAIR KITS
These kits are used for threads which have been previously repaired.
These kits will repair holes that were repaired by helicoil, perma-coil, uni-coil, recoil or any other simular coil style insert that has failed.
BIG-SERT® is a heavy wall solid bushing, easy to install with positive placement.
BIG-SERT® gives increased load protection for critical use.
BIG-SERT® will repair oversize holes which have previously been repaired.
NOTE: Bottom few internal threads are incomplete.
The insert driver (Roll form tap) seats the insert and completes the bottom threads.
This pushes the pin out to contact the threaded hole. Back out of the insert is prevented by the cam lock effect of the pin.
TAP GUIDES INSURE THAT THREADS ARE SQUARE TO SURFACE
Click here to get your Tap Guide
The lower portion of the tap guide should remain as square as possible to the engine surface.
Turn the tap slowly while making sure the guide remains flush.