These standards from ISO, SAE, and IFI cover standardized screw requirements sorted by head. This list covers doublehex head screw standards.
This document has been declared "Stabilized" and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist.
This document has been declared "Stabilized" and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist.
This standard provides the dimensional requirements for inch flange 12-point screws from nominal thread size 1/4 through 1 1/2 inches.
Included in this SAE Standard are the detailed general and dimensional specifications applicable to flanged 12-point screws recognized as SAE Standard and intended for general use in automotive and other ground-based vehicles and industrial equipment. The inclusion of dimensional data in this standard is not intended to imply that all of the products described are stock production sizes. Consumers should consult manufacturers concerning availability of product.