This standard covers the dimensional and general specifications, including performance requirements, for steel self-drilling tapping screws suitable for use in general applications.

It is the objective of this standard to insure that self-drilling tapping screws, by meeting the mechanical and performance requirements specified, shall drill a hole and form or cut mating threads in materials into which they are driven without deforming their own thread and without breaking during assembly or service.

An Appendix is included to provide a recommended technique for measuring the case depth on the screws.