GB/T 819 Stainless Steel Cross Recessed Countersunk Screws - Flush Finish A2-70

Stainless Steel Cross Recessed Countersunk Machine Screws feature a flat or oval head with a 90-degree conical angle and are driven by a cross recess, requiring a specialized tool for tightening. The head design allows the screw to sit nearly flush with the workpiece surface after installation, making it suitable for applications in machinery, electronics, construction, and other fields where a smooth surface finish is essential.
These screws primarily conform to the Chinese National Standard GB/T 819-2016. The commonly used material is SUS304 stainless steel, while some models may also employ other stainless steels such as SUS201 or SUS316.