Product: SP0168 Sidelock Screw (Repro.) For Orig. Enfield .577 Perc. Rifle - Tower,Whitneyville Plymouth,1855 -1863 Springfield, & 1861 S
From: Robert Flowers
Date: Friday 10 February, 2017
My Review Seems to have gone away... Just said these are consistent with a USA #10 machine Screw diameter with a 1.0 Metric Pitch, as a result of French influence from the Charleville Musket onwards. These are "exact fit", per the tolerance of the 19th Century, but may have to be coaxed in a quarter turn at a time, with plenty of oil!