An assortment of pushnut bolt retainers from Hillman. Pushnut bolt retainers are temporary fasteners that hold pre-inserted bolts in place until they reach final assembly. Parts in this assortment are engineered to accommodate screws ranging #6 to 1/2" in diameter. Full assortments of #58478 contain eight (8) refills comprised of Hillman item numbers #58479 - #58486.