What is the standard for self-tapping screws?

In general, there are several standards for the size, mechanical properties and working performance requirements of self-drilling screws:
1. Standards for self-drilling screw dimensions
The ASME B18.6.3 2010 standard not only introduces the dimensions of slotted and cross-slot self-drilling screws and metal drive screws, but also includes the mechanical properties and working performance requirements of carbon steel self-drilling screws. The appendix provides instructions for measuring various dimensions and application guidance on clamping length and test hole diameter.
2. Performance standards for self-drilling screws (including mechanical properties and working performance):
(1) SAE J933: Introduces the mechanical properties and working performance requirements of carbon steel ordinary self-drilling screws and white-cut self-drilling screws. Further specifies the requirements for raw material selection, heat treatment, carburizing layer depth and surface hardness, core hardness, etc.
(2) SAE J81: Introduces the mechanical properties and working performance of self-drilling self-drilling screws (self-drilling locking screws).
(3) SAE J78: Introduces the mechanical properties and working performance of self-drilling self-drilling screws.
(4) IFl-113: introduces the mechanical properties and working performance of self-drilling and self-tapping screws.
(5) ASTM C1513: introduces the mechanical properties and working performance requirements of carbon steel self-tapping screws.
For other special types of self-tapping screws, there are no corresponding national standards or industrial standards, and there is no recognized data on self-tapping screws made of other metal materials except carbon steel. For technical data on these self-tapping screws, you can inquire with the manufacturer.