The engineer Joseph Whitworth developed the BSW thread in 1841 and it is still used to this day. It has a coarser pitch than BSF threads. We have a range of wire thread inserts specifically for repairing damaged or stripped BSW threads.
- BSW 5/16-18x2D wire thread insertsLead time 2-3 weeks£51.79BSW 7/16-14x1.5D Wire Thread Inserts (Bag of 10)In Stock£7.69BSW 5/16-18x1.5D Wire Thread Inserts (Bag of 10)In Stock£4.51BSW 3/4-10x1.5D Wire Thread Inserts (Bag of 5)In Stock£6.61BSW 5/8-11x1.5D Wire Thread Inserts (Bag of 5)Lead time: 3/4 weeks£7.74
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