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    Indianapolis, IN 46203
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M4X.7 Tap, Modified Bottom, metric STI thread, D3/D4, 3 flutes, HSS-E, TiN Coated, 40° Spiral Flute

  • Item Code: 1011-4.000
  • Brand: Guhring
  • Unit Size: 1

Description

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.

Tech Specs

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Diameter (mm) 4.001
Number of flutes 3
Square Size (mm) 4.9
Diameter M4X.7
Overall Length (mm) 70
Series 1011
H Limit D3/D4
Coating TiN
Material HSS-E
Shank Diameter (mm) 6
Helix Angle 40°
Reach (mm) 25
threadtype metric STI
chamfer (decimal) Modified Bottom
Overall Length (decimal) 2.7559
Brand Guhring