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Tapered washers are used to protect the surface of the connected parts from nut abrasion and disperse the pressure of the nut on the connected parts.

Spherical washers must be used with tapered washers, with automatic positioning role, so that the nut support surface and the screw to maintain a vertical state, to avoid the screw bending, mostly used in the workpiece.

The external teeth serrated locking washer is widely used in the machinery industry as a joint fastener, which is usually used in the joint part when the bolt head and nut are connected.

The external teeth locking washer is widely used in the machinery industry as a joint fastener, which is usually used in the joint part when the bolt head and nut are connected.

Spring washers are widely used in the frequently disassembled connected parts, relying on its elasticity and bevel friction effect, can prevent the nut back loose, because of its uniform elasticity.

Plain washer placed between the nut or bolt, screw head and the surface of the connected parts, used to protect the surface of the connected parts to avoid abrasion by the nut, increase the contact area between the connected parts and the nut, reduce the unit pressure acting on the surface of the connected parts.

Small washer placed between the nut or bolt, screw head and the surface of the connected parts, used to protect the surface of the connected parts to avoid abrasion by the nut, increase the contact area between the connected parts and the nut, reduce the unit pressure acting on the surface of the connected parts.

Large washer placed between the nut or bolt, screw head and the surface of the connected parts, used to protect the surface of the connected parts to avoid abrasion by the nut, increase the contact area between the connected parts and the nut, reduce the unit pressure acting on the surface of the connected parts.