Insulation Self Locking Washers are fasteners used for electrical and mechanical connections, whose main function is to provide insulation and anti loosening. In order to ensure its quality and performance, multiple countries and regions have established corresponding national standards.

National standard content

1. Dimensions and tolerances: National standards specify the size range and allowable tolerances for Insulation Self Locking Washers, including parameters such as outer diameter, inner diameter, and thickness.

2. Material requirements: The standard specifies in detail the material requirements for manufacturing Insulation Self Locking Washers, including electrical insulation performance, mechanical strength, and aging resistance.

3. Test method: The standard specifies the testing methods for various performance indicators, such as insulation resistance testing, voltage withstand testing, torque testing, etc., to ensure that the product meets the specified requirements.

4. Marking and packaging: The standard also specifies the requirements for product marking and packaging to ensure that the product quality will not be damaged during transportation and storage.