Download or read book GB T 5285 2017 Translated English of Chinese Standard GBT 5285 2017 GB T5285 2017 GBT5285 2017 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2019-05-18 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies type size, technical conditions and marks for hexagon head tapping screws. This Standard applies to hexagon head tapping screws of which thread size is ST 2.2~ST 9.5, product level is A.