Product Description
STI TAPS
An STI tap thread tap is designed to create an oversized thread to accommodate the required Heli-Coil insert. Screw Thread Inserts (STI) are helically formed diamond shaped stainless steel or phosphorous bronze wire that screw into a threaded hole to form a mating internal thread. Screw thread inserts are a convenient way of repairing stripped out threads and are also used to provide stronger threads in softer materials than can be obtained by directly tapping the base metal.
HSS STI thread tap Metric Machine Screw Recoil Tap for blind hole Screw Thread Insert STI Tap
Recoil Taps or STI Taps or Screw Thread Insert Tap are used with Recoil Inserts or Helicoil Inserts only.
Recoil Taps are manufactured to precise standards from High Speed steel (HSS) with ground threads and are available in Taper,
Intermediate and Bottoming leads.
They have a large diameter but the same pitch as a standard tap in order to accommodate the Recoil Inserts. Spiral Point and
Spiral Flute machine taps are also available. For all spark plug applications pilot nose taps are available. The Recoil thread
inserts when installed into a correctly tapped hole will provide the applicable internal thread tolerance for the installed bolt.
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