
Specification. ISO metric trapezoidal screw threads
出版:British Standards Institution

專家解讀視頻
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.
? British Standards Institution 2013
Amendment notes:
AMD 3552 published 15 December 1981
AMD 5095 published 30 June 1986
AMD 5507 published 30 June 1987