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All Products  ➞ Threaded Inserts ➞ PowerCoil® ➞ STI Taps ➞ Straight Flute Taps ➞ 8-UN

1.7/8" x 8 STI UN Bottoming HSS Tap

Part Number:3570-1.7/8B
Brand:PowerCoil
Barcode:9326518015864
Diameter (inch):1-7/8
Lead:Bottoming
Length (mm):200
Pitch (tpi):8
TPI:8

About this item:
  • 1.7/8" x 8 STI UN Bottoming HSS Tap
  • Unified National 8 Thread Series (UN-8)
  • HSS Bottoming Lead 3B Tolerance Screw Thread Insert (STI) Tap.
  • PowerCoil wire thread inserts are installed into oversize tapped holes.
  • Only PowerCoil STI (Screw Thread Insert) Taps are suitable for use with PowerCoil Wire Thread Inserts.
  • STI Taps have a larger diameter, than standard taps, but the same pitch to accommodate the wire thread insert.
  • Once the insert is installed in the tapped hole it creates the desired internal thread tolerance for the installed bolt or stud.