Reply To: Record 044 parts
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[postquote quote=469895]
American UNC ( equivalent of imperial) 10-24 tpi screw is a near perfect fit.
The difference is about .0025 , within the tolerance limits of either thread specification
UNC = 10-24 = .190”
3/16 whitworth .1875”
Same pitch, The 5° difference in pitch angle is unnoticeable in this thread size. I’m not even sure the makers paid any attention to the difference, either..
I don’t know enough about actual Imperial to know if 10-24 I available in the U.K.
I have a Record 043 with 3 thumb screws I installed on a purchase I made very cheaply because it had none.
10-24 is a standard size in the USA. It’s in every hardware store in America. You should be able to get yourself a knurled or thumbscrew for about 75¢.
Picture below with a 10-24 thumb screw i normally have for the depth stop in the lever cap of my 043.. note also the UNC thumb screws on the sliding fence.
When I hold the whitworth and unc parts up to each other, I sure can’t tell the difference.
10-24 is also a common drop in replacement on many Stanley planes also – the lever cap and dept stop screws on a 78, for instance
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This reply was modified 3 years, 3 months ago by
Larry Geib.
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This reply was modified 3 years, 3 months ago by
Larry Geib.
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This reply was modified 3 years, 3 months ago by
Larry Geib.