PICTURES ARE REPRESENTATIVE OF ITEM, BUT ARE NOT OF THE ACTUAL ITEM. Product dimensions, finish, head markings, thread length, stamping shape or forging shape, etc., may differ from picture. Products are guaranteed to meet the specifications to which they are manufactured. Specifications allow for tolerances in dimension and shape, which can vary from lot to lot. A nut with a metric thread pitch and wings set 180° apart from each other which allows the part to be manually turned. Class 5 metric cold-forged wings nuts are used when a part is frequently assembled and disassembled at a place where torque greater than the achieved with finger pressure is not needed. The cold-forged style nut has been more populat in the United States, specially in the automotive aftermarket. It can also be safer to use than a malleable wing nut which can have sharp burrs that must be filled down prior to installation.