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Product Description
| Thread | BSW (British Standard Whitworth) |
| Size | 1/4" |
| Pitch | 20tpi |
| Thread angle | 55 degrees |
| Material | Chrome Alloy |
About this item:
- 1/4 x 20 BSW Chrome Alloy Die Nut
- British Standard Whitworth (BSW).
- Die nuts are commonly used when a button die is not suited due to work space restrictions and / or on site thread accessibility.
- They can be used as thread chasers to clean an existing thread.
- Chrome alloy dies are not suitable for creating precision, safety or critical threads.
- The BSW thread form was developed by Sir Joseph Whitworth in 1841.
- The thread form has rounded roots and crests and is specified in BS84:1956.
- The thread angle for BSW is 55º as opposed to 60º in Metric and Unified threads.
