How to measure BSP Threads.

Themost common problem that we have found our customers run into is the measurement and identification of pipe threads (BSP Thread)

Note that a thread that measures 1/2" is not a 1/2" BSP thread.

Use a tape, rule or vernier gauge to measure across the outside of the male thread. 

Using the comparison table below we can see that a thread measuring 1" is actually a 3/4" BSP thread. Similarly, a thread that measures 2" is actually a 11/2" BSP thread.

 

BSP Thread Size Physical Diameter
inch mm
18" 9.72
14" 13.15
38" 16.66
12" 20.95
58" 22.91
34" 26.44
1" 33.24
1 14" 41.91
1 12" 47.80
2" 59.61
2 12" 75.18
3" 87.88
4" 113.03
5" 138.43
6" 163.83
If you are unsure of the BSP size you require, please dont hesitate to contact us by phone or email. 

 

Phone: 01622 470049

Email: sales@thepvcshop.com

Address: Moat Farm, Green Lane, Maidstone, Kent, ME17 3ES, England, UK