An assortment of zinc-plated carriage bolts with hex nuts from Hillman. Carriage bolts are commonly used in wood connections due to the square neck beneath the round, smooth head which fits securely in the hole and prevents the head from turning. Hex bolts screw onto a bolt in order to create a complete fastener. Parts in full assortment all feature a 10-24 coarse screw thread and come in various lengths measuring 3/4" thru 4". Full assortments of #2146 contain eight (8) refills comprised of Hillman item numbers #2147 - #2154.