.7 x 16mm Socket Cap Screw - Steel - Black Oxide - DIN 125B - Class 12.9 - Pkg of 100 Allen/hex keys are used to drive the screw.socket head cap screws supply greater tensile strength than equivalent hex head caps screws, while requiring less surface area to counterbore.
The AC6800 series feature the Rope Lock System allowing a wheel chock to be temporarily and securely attached to the opposing wheel chock on the opposite side of the aircraft tire.20 in.