Pete Lindahl in a 2006 post by Alan Drake gave the following description.
p/n 9409107 is a 1/4-20 x 5/8" zinc plated screw with a 7/16" sunken head, integral lock washer, and flat end.
Does integral lock washer mean toothed/star or split ring?
p/n 9409107 is a 1/4-20 x 5/8" zinc plated screw with a 7/16" sunken head, integral lock washer, and flat end.
Does integral lock washer mean toothed/star or split ring?
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