China 'GB/T 819.2-2016
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 819.2-2016
Countersunk flat head screws with cross recess—Part 2: Property class 8.8, stainless steel screws and non-ferrous metal screws 十字槽沉头螺钉 第2部分:8.8级、不锈钢及有色金属螺钉
Issued Date:2016-02-24
Implemented Date:2016-06-01
Issued by:
The Standardization Administration of the People's Republic of China