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metric threads

metric threads

metric threads

(OP)
I'm looking for M profile limiting dimensions for a M23 x 1 external thread. All charts go from m22 to m24.
Any reference would be great. It is not listed in ASME B1.13M-2005 Metric Screw Threads: M profile. Thanks

RE: metric threads

I suspect that an M23 thread is considered non-standard and besides, a thread that large with only a 1 mm pitch, it would be an ultra-fine thread, not something that you would expect to be used in a fastener.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:

To an Engineer, the glass is twice as big as it needs to be.

RE: metric threads

Try ISO 965-1. Limits will need to be calculated.

- pylfrm

RE: metric threads

M23x1, Metric Fine Thread. DIN/ISO 13 T21.
External
M23x1-4h
OD max 23.000, min 22.888
PD max 22.350, min 22.270
Root D max 21.773, min 21.654

M23x1-6g
OD max 22.974, min 22.794
PD max 22.324, min 22.199
Root D max 21.747, min 21.583

M23x1-8g
OD max 22.974, min 22.694
PD max 22.324, min 22.124
Root D max 21.747, min 21.508

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