Pin/ and Lug Connector Set Hose Shank. This Aluminium Hose Shank Pin Lug Connector Set is made from an Aluminium alloy with Brass Swivel, specially designed for high tensile strength, lightness and rigidity. Our pin lug couplings come complete with male and female shanks in NST threads. They are normally used on the ends of a suction hose or lay flat discharge hose. Male and female ends are made of aluminium, and the female end has brass swivel nut. Applications include Agriculture, Chemicals, Petroleum, Construction and Material Handling.