Welcome to British Metrics technical area. Check out these thread charts, washer information sheets, and metric bolt classes. More info is available on request.
BA Thread Chart
BSF Thread Chart
BSW Thread Chart
BSP Thread Chart
PG Thread Chart
European Electrical Threads
PSI to BAR Chart
BS4320 Type A Washer
BS4320 Type B Washer
BS4320 Type C Washer
BS4320 Type D Washer
BS4320 Type E Washer
British Wrench Sizes
Metric Bolt Property Classes