An assortment of nylon toilet seat bolts & nuts from The Hillman Group. Nylon nuts & bolts are for general hardware use where high-strength connections are not typically required. Use parts in this assortment together to secure toilet seats in place. Variants included in this assortment come in 3/8" & 7/16" diameters. Full assortments contain six (6) refills comprised of Hillman item numbers #56131 - #56134. Full assortments of #56130 contain two (2) refill boxes of items #56131 & #56133.