Features: BSW - British Standard Whitworth; The angle of thread is 55 degrees as opposed to 60 degrees in Metric and Unified threads. ; This thread form was developed by Sir Joseph Whitworth in 1841. ; The thread form has rounded roots and crests and is specified in BS84:1956. ; INTERMEDIATE TAPS have a lead of four threads and are used in most general purpose applications to cut a thread true to a pre-drilled pilot hole. ; Specifications:Diameter5/16"Pitch18 tpiLeadIntermediateOverall Length72 mmTapping Drill6.5 mm
Features: BSW - British Standard Whitworth; The angle of thread is 55 degrees as opposed to 60 degrees in Metric and Unified threads. ; This thread form was developed by Sir Joseph Whitworth in 1841. ; The thread form has rounded roots and crests and is specified in BS84:1956. ; INTERMEDIATE TAPS have a lead of four threads and are used in most general purpose applications to cut a thread true to a pre-drilled pilot hole. ; Specifications:Diameter5/16"Pitch18 tpiLeadIntermediateOverall Length72 mmTapping Drill6.5 mm
Features: BSW - British Standard Whitworth; The angle of thread is 55 degrees as opposed to 60 degrees in Metric and Unified threads. ; This thread form was developed by Sir Joseph Whitworth in 1841. ; The thread form has rounded roots and crests and is specified in BS84:1956. ; INTERMEDIATE TAPS have a lead of four threads and are used in most general purpose applications to cut a thread true to a pre-drilled pilot hole. ; Specifications:Diameter5/16"Pitch18 tpiLeadIntermediateOverall Length72 mmTapping Drill6.5 mm
Features: BSW - British Standard Whitworth; The angle of thread is 55 degrees as opposed to 60 degrees in Metric and Unified threads. ; This thread form was developed by Sir Joseph Whitworth in 1841. ; The thread form has rounded roots and crests and is specified in BS84:1956. ; INTERMEDIATE TAPS have a lead of four threads and are used in most general purpose applications to cut a thread true to a pre-drilled pilot hole. ; Specifications:Diameter5/16"Pitch18 tpiLeadIntermediateOverall Length72 mmTapping Drill6.5 mm
Last updated at 03/18/2026 13:20:56
Bordo 7/8" x 14 TPI BSPF Tap Set HSS Hand and Machine Tap
Delivery between 23–30 Mar $12.61
| Diameter (inch) | 7/8 |
| Pitch/TPI | 14 |
| Drill Size (mm) | 28.25 |
| Thread Form Type | BSPF (G Series) |
| Overall Length (OAL) mm | 102 |
Bordo 7/8" x 14 TPI BSPF Tap Set HSS Hand and Machine Tap
Delivery between 23–30 Mar $12.61
| Diameter (inch) | 7/8 |
| Pitch/TPI | 14 |
| Drill Size (mm) | 28.25 |
| Thread Form Type | BSPF (G Series) |
| Overall Length (OAL) mm | 102 |
