ASME B1.13M-2005
Metric Screw Threads: M Profile

Standard No.
ASME B1.13M-2005
Release Date
2005
Published By
American Society of Mechanical Engineers (ASME)
Status
Replace By
ASME B1.13M-2005(R2015)
Latest
ASME B1.13M-2005(R2020)
Replace
ASME B1.13M:2001
Scope
This Standard contains general metric standards for a 60 deg. symmetrical screw thread with a basic ISO 68 profile designated M profile. The M profile threads of tolerance class 6H/6G are intended for metric applications where inch class 2A/2B have been used. At the minimum material limits, the 6H/6G results in a looser fit than the 2A/2B. Tabular data is also provided for a tighter tolerance fit external thread of class 4G/6G which is approximately equivalent to the inch class 3A but with an allowance applied. Formulation and tolerancing data is included for applications requiring other fits.

ASME B1.13M-2005 history

Metric Screw Threads: M Profile



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