Re: GTW Grease Zerk Size
Typically the smallest SAE fitting is 1/4”-28 thread. There are smaller metric fittings at 7x1.00 thread, which may be what the GTW kit used.
Good news is zerk fittings are tough, and the smaller sizes taper, so you can probably just force it in there a few turns it will cut its own threads and will never come out. If that doesn’t work out, tap the threads to 1/4”-28 size or go up to the next size, 5/16-24 I think?
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