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All Products ➞ Bordo ➞ Taps & Dies ➞ HSS Hand and Machine Taps ➞ HSS Tap BSW
5/16" x 18 BSW Bottoming HSS Tap
| Part Number: | 3028-5/16B |
| Brand: | Bordo |
| Barcode: | 9326518030942 |
| Pack Qty: | 1 |
| Diameter (inch): | 5/16 |
| Drill Diameter (mm): | 6.5 |
| Lead: | Bottoming |
| Overall Length (mm): | 72 |
| Pitch (tpi): | 18 |
| Thread Form: | BSW |
About this item:
- 5/16" x 18 BSW Bottoming HSS Tap
- HSS BSW Bottoming Hand and Machine Tap.
- British Standard Whitworth has a thread angle of 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.
- 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.
- Manufactured from HSS this general purpose tap is designed for use in medium tensile materials and is for hand or general machine use.
Alternative Products
 |  | |
|---|---|---|
| Selected Product | Alternative | |
| Part Number: | 3028-5/16B | B12AC4 |
| Title: | 5/16" x 18 BSW Bottoming HSS Tap | 5/16" x 18 BSW Bottoming HSS Tap - Goliath |
| Barcode | 9326518030942 | 9349009007186 |
| Brand | Bordo | Goliath |
| Thread Form | BSW | BSW |
| Diameter (inch) | 5/16 | 5/16 |
| Drill Diameter (mm) | 6.5 | 6.5 |
| Lead | Bottoming | Bottoming |
| Overall Length (mm) | 72 | 72 |
| Pitch (tpi) | 18 | 18 |
| TPI | 18 | |
| Tolerance | CL 2 | |
| Pack Qty | 1 | 1 |
| # Flutes | 4 | |
| Standard | ISO529 |