An assortment of class 12.9 metric socket-head cap screws from Hillman. Socket-head cap screws carry a recessed internal socket drive to add strength. They are commonly used on machine parts, manufacturing equipment, and other mechanical applications. Variants in this assortment feature a coarse M10-1.50 thread size. Full assortments of #43113 contain nine (9) refills comprised of Hillman item numbers #43114 - #43122.