JIS B 1190 (ISO 4161) - 2005Hexagon Nuts With Flange - Coarse...
M20 (Non-preferred) dimensions in parentheses. Unit:mm JIS B 1190 (ISO 4161) - 2005 Display drawing: Thread Size d M5M6M8M10M12(M14)M16M20 PPitch cmin damin max dcmax dwmin emin mmax min mwmin smax min rmax 0.811.251.51.75222.5 ...