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Socket Set Screws Assortment (#4-40 & #6-32)Hillman Item #4620
An assortment of plain steel socket set screw variants from The Hillman Group. Socket set screws are fully-threaded headless screws with a recessed hex drive. The screw passes through a threaded hole in the outer object and is tightened against the inner object to prevent it from moving relative to the outer object. Included variants measure #4-40 and #6-32 in USS coarse screw thread size and run 1/8" thru 1" in length. Full assortment contains fourteen (14) refills comprised of Hillman item numbers #4621 - #4634.