This listing is for a pack of four top quality lift off double knuckle hinges. Solid steel bodies with removable brass hinge pin. Precision machined for friction-less operation. Bolt-on design, fitted with M8 mounting studs. (14mm length) As fitted as an OEM part by many truck/trailer manufacturers but also popular as a high quality alternative on motorhomes, caravans etc... 16mm wide blocks, 32mm total height. 8mm diameter hinge pin. Zinc plated finish for corrosion protection. Suitable for up to 180 degree opening. Includes mounting nuts, star washers and flat thrust washer.