- Joined
- May 20, 2021
- Messages
- 3
Short version: Are M22 x 1.5mm - and - 7/8" x 16 tpi - functionally equivalent and interchangeable in non-critical applications?
Details: I just bought a Taiwan-made drill press that is missing a left-hand threaded nut to secure the pulley block to the tapered quill/spindle (no keyway or set screws).
As best as I can measure, the male spindle threads are EITHER: M22 x 1.5mm - OR - 7/8" x 16 tpi.
I believe my 16 tpi thread pitch gauge MAY be fitting a little better than my metric 1.5 gauge, but I am not certain.
I can find left hand M22 x 1.5 nuts at McMaster-Carr, but so far, I can't find any source for left hand nuts in 7/8" x 16 tpi.
If the actual size of the spidle threads is 7/8" x 16 tpi, can I get away with substituting a M22 x 1.5 mm nut for this application?
Details: I just bought a Taiwan-made drill press that is missing a left-hand threaded nut to secure the pulley block to the tapered quill/spindle (no keyway or set screws).
As best as I can measure, the male spindle threads are EITHER: M22 x 1.5mm - OR - 7/8" x 16 tpi.
I believe my 16 tpi thread pitch gauge MAY be fitting a little better than my metric 1.5 gauge, but I am not certain.
I can find left hand M22 x 1.5 nuts at McMaster-Carr, but so far, I can't find any source for left hand nuts in 7/8" x 16 tpi.
If the actual size of the spidle threads is 7/8" x 16 tpi, can I get away with substituting a M22 x 1.5 mm nut for this application?