Code: SBBWSC0250125
£13.24 £15.89
| Threads Per Inch: | 20 |
| Bolts Diameter: | 1/4" |
| Bolts Material: | Steel |
| Finish: | Self Colour |
| Head Type: | Socket Button |
| Thread Type: | Imperial - BSW |
| Length Under Head: | 1 1/4" |
| Tapping Drill Size: | 5.1mm |
BSW (British Standard Whitworth) is an imperial coarse thread first used in standard production by Joseph Whitworth during the industrial revolution. Whilst it is still used in engineering applications all across the world it is less common in the UK where metric threads have generally taken over.