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All Products  ➞ Threaded Inserts ➞ PowerCoil® ➞ STI Taps ➞ Machine Taps ➞ UNF

1/2" x 20 STI HSS Cobalt UNF Spiral Flute Tap

Part Number:3534-1/2SF
Brand:PowerCoil
Barcode:9326518074663
Diameter (inch):1/2
Lead:Spiral Flute
Length (mm):90
Pitch (tpi):20
TPI:20

About this item:
  • 1/2" x 20 STI HSS Cobalt UNF Spiral Flute Tap
  • Unified National Fine (UNF).
  • HSS-Co Spiral Flute 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.