Cross grooved screws are screws made of iron and stainless steel. Standard specification for screws: Standards are norms, and each country and department has its own standards. The most common standards we use in our business are as follows: GB -- China National Standard (GB) DIN - German National Standard ASME - American Institute of Mechanical Engineers standard JIS -- Japanese National Standard (JIS) BSW -- British National Standard
Cross grooved screws are screws made of iron and stainless steel.
