An assortment of class 8.8 metric hex cap screws from The Hillman Group. Hex cap screws, or hex bolts, are perfect for most applications in which a stronger, sturdier bolt is desired. A common feature on hex cap screws is a washer surface directly under the head which creates a better seal. Included variants feature a fine M12-1.25 thread size and range from 25mm to 120mm in length. Full assortments of #34394 contain ten (10) refills comprised of Hillman item numbers #34395 - #34404.