Bordo Hand Tap Chrome NPT Bottoming 1/8"x27 - 4252-1/8B

Bordo Hand Tap Chrome NPT Bottoming 1/8"x27 - 4252-1/8B

MODEL: 4252-1/8B
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TKD: BO4252-1/8B
Was: $32.25
Now: $29.03 Sale
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Description

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NPT (National Pipe Tapered)
  • NPT is a US standard for tapered threads used to join pipes and fittings.
  • ANSI/ASME standard B1.20.1 covers threads of 60° form with flat crests and roots. The taper on NPT threads allows them to form a seal when torqued as the flanks of the threads compress against each other. However a clearance remains between the crests and roots of the threads, resulting in a leakage around this spiral. This means that NPT fittings must be made leak free with the aid of thread seal tape or a thread sealant compound. For each 12″ increase in distance from the end, the diameter increases by 3/4″.
  • 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. Bottoming Taps are typically preceded by the use of a Taper or Intermediate Tap.
 

 

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