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 coarse 3/8"-16 thread size and range from 3/4" to 4" in length. Full assortments of #2311 contain eight (8) refills comprised of Hillman item numbers #2312 - #2319.