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Gunplummer · April 7, 2012, 10:17 AM

Not just 1/4 - 22, but Whitworth. The thread angle is 55* but 60* will usually work, if you can even find one.

April 7, 2012, 10:17 AM	#13
Gunplummer Senior Member Join Date: March 11, 2010 Location: South East Pa. Posts: 3,364	Not just 1/4 - 22, but Whitworth. The thread angle is 55* but 60* will usually work, if you can even find one.