There is also a wide range of different nut types in fasteners, including wing, acorn, hex, flange, castle, and jam. Wing nuts are designed to be easily turned and installed by hand. Cage nuts have slots in the top for low-torque applications such as retaining wheel bearings. Hexagonal nuts are usually connected to hexagonal head bolts and tightened with a wrench.

Wing nuts do not require other tools when used. They are specially designed to facilitate hand-tightening operations. The wing-shaped design of the head increases the lateral stress surface, making hand-tightening more efficient. It is mainly used in medical equipment, wind energy, electricity, For equipment that requires frequent disassembly and maintenance such as aerospace, office equipment, petrochemical industry, electronic communications, and shipbuilding industries.