Écrous hexagonaux à embase cylindro-tronconique, style 2 — Filetage à pas fin

ISO 10663:2012 specifies the characteristics of hexagon nuts with flange (style 2), and metric fine pitch thread with nominal thread diameters, D, from 8 mm to 20 mm, in product grade A for D less than or equal to 16 mm and product grade B for D greater than 16 mm.