In looking at the south bend lathe parts manual, there are two part numbers listed ( 20 and 21 ) but only one (non-taper attachment) pictured which is 20. It is labeled direct reading dial. However there is only one nut listed which is part 56 labeled English threads.
Can anyone tell me the difference between the screw labeled 20 and the variation listed as 21?
I am wondering because I bought a used screw on eBay which appears dimensionally correct except it will not screw into my existing cross feed screw brass nut.
Is one part designated for a direct reading dial and the other for non direct dial? Or is one variation metric?
Thanks,
Paul
Can anyone tell me the difference between the screw labeled 20 and the variation listed as 21?
I am wondering because I bought a used screw on eBay which appears dimensionally correct except it will not screw into my existing cross feed screw brass nut.
Is one part designated for a direct reading dial and the other for non direct dial? Or is one variation metric?
Thanks,
Paul