scope:

Note: Nothing in this standard supercedes applicable laws and regulations.

Note: In the event of conflict between the English and domestic language, the English language shall take precedence.

Purpose/Material Description.

The purpose of this standard is to provide the dimensional, mechanical, and material requirements for flat washers used in bolted joints.

Symbols.

Not applicable.

Applicability.

This standard applies to the design of steel flat washers. It is not applicable to washers preassembled to a bolt, screw, stud, or nut. This standard is not applicable to stainless steels or nonferrous materials.

Remarks.

The material, hardness, and metallurgical requirements are based on ISO 898-3 property class 300 HV. Key information is reproduced here for reference. See the relevant sections in ISO 898-3 for further details.