An assortment of grade 8 hex cap screw variants from The Hillman Group. Hex cap screws can be used when looking for outdoor applications or simply a stronger bolt. Variants included in this assortment feature a fine 5/8"-18 thread size and range from 1-1/2" to 4" in length. Full assortments of #43720 contain six (6) refills comprised of Hillman item numbers #43721 - #43726.