Bordo 1/4" x 28 TPI Left Hand UNF Intermediate Tap
Available
The Bordo Left Hand UNF Intermediate Hand & Machine Tap - 3092 is part of Bordo's Australian range of hand taps, built for reliable performance in trade and industrial applications.
Key Specifications
| Drill Size (mm) | 4.1 |
|---|---|
| Diameter (inch) | 10G |
| Pitch/TPI | 32 |
| Flute Type | Straight |
| Overall Length (OAL) mm | 58 |
| Thread Form Type | UNF |
Product Features
- Unified National Fine thread form was introduced in 1948 as an attempt to standardise thread forms in the USA, Canada and the UK
- The thread profile of UNF is the same as for metric threads and is described in the JIS B0206 standard
- When used on external threads this series has greater tensile stress area than coarse threads of the same size
- HSS UNF LEFT HAND Intermediate Hand and Machine Tap
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Left Hand UNF Intermediate Hand & Machine Tap - 3092: 1/4
SKU: A0202609 | Model: 3092-1/4I
Diameter (inch) 1/4. Bordo Left Hand UNF Intermediate Hand & Machine Tap - 3092
HSS UNF LEFT HAND Intermediate Hand and Machine Tap.
Unified National Fine thread form was introduced in 1948 as an attempt to standardise thread forms in the USA, Canada and the UK.
The thread profile of UNF is the same as for metric threads and is described in the JIS B0206 standard.
The thread is described by its major diameter and the number of threads per inch of length (TPI).
When used on external threads this series has greater tensile stress area than coarse threads of the same size.
Fine series threads will resist stripping out better than coarse threads in areas where the external and mating internal threads are subjected to loads equal to or greater than the capacity of the screw or bolt.
Fine threads are also used where the length of engagement is limited 1-1/4 or where wall thickness demands a fine pitch.
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.
Manufactured from HSS this general purpose tap is designed for use in medium tensile materials and is for hand or general machine use.

