GB/T 898-1988 Translated English of Chinese Standard. (GBT 898-1988, GB/T898-1988, GBT898-1988): Double end studs - bm=1.25d [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]https://www.chinesestandard.net, 2019 M03 16 - 9 pages This Standard specifies double end studs with thread diameters of M5~M48 and bm=1.25d. Commodity fastener varieties shall be preferred. |