Gasket Classification

Washers are categorized as follows: Flat washers (Grade C), Large washers (Grades A and C), Extra-large washers (Grade C), Small washers (Grade A), Flat washers (Grade A, chamfered type), High-strength washers for steel structures, Spherical washers, Conical washers, Square bevel washers for I-beams, Square bevel washers for channel steel, Standard spring washers, Light spring washers, Heavy spring washers, Internal tooth locking washers, Internal serrated locking washers, External tooth locking washers, External serrated locking washers, Single-ear locking washers, Double-ear locking washers, External tongue locking washers, and Locking washers for round nuts.

Flat washers are generally used in connectors where one component is soft and the other is hard and brittle. Their main function is to increase the contact area, distribute pressure, and prevent damage to the softer component. The basic function of a spring washer is to apply force to the nut after tightening, increasing the friction between the nut and bolt. The material is 65Mn (spring steel), with a heat treatment hardness of HRC44～51HRC, and it undergoes surface oxidation treatment.