An assortment of class 8.8 metric 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 coarse M6-1.00 screw thread and range from 50mm to 80mm in length. Full assortments of #45491 contain seven (7) refills comprised of Hillman item numbers #3597 - #3599 and #45492 - #45495.