Features: 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. ; Specifications:Diameter1/8"Pitch27 tpiLeadBottomingOverall Length54 mmTapping Drill8.4 mm
Features: 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. ; Specifications:Diameter1/8"Pitch27 tpiLeadBottomingOverall Length54 mmTapping Drill8.4 mm
in 4 offers
last seen 11 May 2026
The lowest price we last saw for Bordo 1/8" x 27 NPT Bottoming Chrome Alloy Tap 4252-1/8B was $43.50 at Industrial Shed, compared across 3 retailers (last seen 11 May 2026). Prices may have changed since.
The all-time low we recorded was $12.33 on 9 June 2024.
Prices last updated 11 May 2026.
Bordo 1/8" x 27 NPT Bottoming Chrome Alloy Tap 4252-1/8B
Features: 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. ; Specifications:Diameter1/8"Pitch27 tpiLeadBottomingOverall Length54 mmTapping Drill8.4 mm
Features: 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. ; Specifications:Diameter1/8"Pitch27 tpiLeadBottomingOverall Length54 mmTapping Drill8.4 mm
Last updated at 11/05/2026 04:14:40
Bordo - 1/8 NPT Chrome Alloy Tap - Bottoming | 4252-1/8B
Delivery between 12–20 May $7.95
Bordo Hand Tap Chrome NPT Bottoming 1/8"x27 - 4252-1/8B - Tool Kit Depot
Delivery between 18–21 May $10
Bordo 4252-1/8B 1/8" x 27TPI NPT Bottoming Chrome Alloy Tap
Delivery $9.70
| Diameter | 1/8" |
| Pitch | 27 tpi |
| Lead | Bottoming |
| Overall Length | 54 mm |
| Tapping Drill | 8.4 mm |
Bordo - 1/8 NPT Chrome Alloy Tap - Bottoming | 4252-1/8B
Delivery between 12–20 May $7.95
Bordo Hand Tap Chrome NPT Bottoming 1/8"x27 - 4252-1/8B - Tool Kit Depot
Delivery between 18–21 May $10
Bordo 4252-1/8B 1/8" x 27TPI NPT Bottoming Chrome Alloy Tap
Delivery $9.70
| Diameter | 1/8" |
| Pitch | 27 tpi |
| Lead | Bottoming |
| Overall Length | 54 mm |
| Tapping Drill | 8.4 mm |
