Oddball Metric Threads
Oddball Metric Threads
(OP)
I'm a QC Tech for a Communications Assembly Facility here in Connecticut.
Today I had a visit from a Toolmaker, asking me for the tolerances on an M29 x 1.5 thread.
Wouldn't ya know the Machinists Handbook skips right over the M29's!!
I realize that M29 is the definer of the Nominal (29mm) and the 1.5 represents the threads per revolution, but what are the tolerance ranges for the Major and Minor threads I haven't a clue.......
Someone got an answer?
-Soupy1957
Today I had a visit from a Toolmaker, asking me for the tolerances on an M29 x 1.5 thread.
Wouldn't ya know the Machinists Handbook skips right over the M29's!!
I realize that M29 is the definer of the Nominal (29mm) and the 1.5 represents the threads per revolution, but what are the tolerance ranges for the Major and Minor threads I haven't a clue.......
Someone got an answer?
-Soupy1957





RE: Oddball Metric Threads
angle is 60°.
for tolerancing there are classes.
check the following links:
http://
http://mdmetric.com/tech/threadtech.pdf
http://www
htt
cezar
guelph, on
RE: Oddball Metric Threads
eg. for a bolt of M6X1, the major is 6mm, so M29X1.5, the major is 29. Minor you can calculate. The angle is 60°
Good luck
RE: Oddball Metric Threads
-Soupy1957