BS 5346 76th Edition, May 28, 1976
Specification for ISO metric trapezoidal screw threads
Includes all amendments and changes through Reaffirmation Notice , May 1, 2015
Additional Comments: INCLUDES AMENDMENT A3
Published By:British Standards Institution (BSI)
Requirements from 8 to 300 mm diameter. Single and multiple-start threads included in details for designation and tolerances. Tolerance system specified does not apply to threads with special requirements for axial displacement, e.g. lead screws.