A Hillman assortment of class 10.9 metric hex cap screws with thread size M6-1.00. 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. The assortment features hex cap screws in variants featuring M6-1.00 coarse screw thread in lengths ranging 35mm thru 80mm. Full assortments of #46012 contain six (6) refills comprised of Hillman item numbers #43220 - #43221 and #402490 - #402493.