Nylon spacers and washers
Keystone Electronics Corp. (Astoria, NY) offers Nylon spacers and washers designed to grip the outside of a screw shank and easily slide onto screws wile assuring secured retention via the screw threads. The spacers will accommodate #4, #6, #8, and #10 size screws in body lengths from .125" to 1" in increments of .125", while the washers accommodate #2, #4, #6, #8, #10, .250" and .375" size screws, with thickness of .032" or .062".

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