An assortment of zinc-plated metric stover lock nuts from The Hillman Group. Stover lock nuts are one-piece, all-metal prevailing hex nuts with a conical top and flat bottom-bearing surface with chamfered corners. Since they are top-locking and only the bottom surface is flat, stover nuts are considered one-way lock nuts because they can only be installed one way. This full assortment features variants with coarse, fine, and extra fine screw thread types ranging from M6 to M16 in diameter. Full assortments of #45658 contain ten (10) refills comprised of Hillman item numbers #45659 - #45668.