| IIRC, most nelson pump handle screws are 10-32..but how long, im gonna need a thread gage to determine...lol.. but upon first inspection, theres 4 ridges (4 windings of one thread) and its a single lead thread, so thats simpler. for length before hitting the knob, it looks to be half an inch, again, on visual inspection. for the head on my nelspot's bolt, its a ball, of approximately half inch diameter, or smaller.... (its not a perfect sphere lol)
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nothing like the heft of steel nelspots  |