NEN ISO 898-2 : 1994

Gives the mechanical properties of nuts with specified proof load values when tested at room temperature. Applies to nuts - with nominal thread diameters up to and including 39 mm; of triangular ISO thread and with diameters and pitches according to ISO 68 and ISO 262 (coarse thread); with diameter/pitch combinations according to ISO 261 (coarse thread); with thread tolerances 6H according to ISO 965-1 and ISO 695-2; with specific mechanical requirements; with widths across flats as specified in ISO 272 or equivalent; with nominal heights greater than or equal to 0,5 D - made of carbon steel or low alloy steel.