NF EN ISO 8675, E25-453 (09/2023)

This document specifies the characteristics of hexagonal low nuts (style 0), in steel and stainless steel, with metric fine pitch threads with diameters 8 mm to 64 mm, and grades A and B. Low nuts used as counter- nut are to be assembled with a normal nut or a high nut. WARNING — Low nuts (style 0) have a reduced load capacity compared to normal or high nuts, and are not designed to provide resistance to thread pullout (see ISO 898-2). If in some cases other specifications are required, stainless steel grades and quality classes can be chosen from ISO 3506-2.
(Automatic translation from French)