Historical
ANSI/ASME B1.13M-2001
Metric Screw Threads - M Profile
Contains general metric standards for a 60-degree symmetrical screw thread with a basic ISO 68 profile desginated M profile. The M profile threads of tolerance class 6H/6g are intended for metric applications where inch class 2A/2B have been used.
Content Provider
American Society of Mechanical Engineers [asme]