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All Products  ➞ Bordo ➞ Taps & Dies ➞ HSS Hand and Machine Taps ➞ HSS Tap NPSF (Dryseal Taper)

1/8" x 27 NPSF Bottoming HSS Tap

Part Number:3056-1/8B
Brand:Bordo
Barcode:9326518101598
Pack Qty:1
Diameter (inch):1/8
Drill Diameter (mm):8.7
Lead:Bottoming
Overall Length (mm):59
Pitch (tpi):27
Thread Form:NPSF (Dryseal Taper)

About this item:
  • 1/8" x 27 NPSF Bottoming HSS Tap
  • HSS NPSF Bottoming Hand and Machine Tap.
  • National Pipe Straight Fuel (Dryseal) is a variation of the Dryseal thread.
  • It is used for internal threads and an NPTF external thread can be screwed into it to provide both a satisfactory mechanical connection and hydraulic seal.
  • A combination of a parallel and tapered thread would not appear to be ideal but it is widely used.
  • Many quick disconnect couplers for example have the NPSF thread and are recommended by the manufacturer for use with NPT and NPTF.
  • Bottoming Taps have a lead of two threads and are used to ensure minimum thread run-out when tapping to the bottom of a blind hole.
  • Manufactured from HSS this general purpose tap is designed for use in medium tensile materials and is for hand or general machine use.