Full Description

This International Standard specifies the mechanical and performance properties for prevailing torque type steel hexagon nuts (including those with flange) when tested over an ambient temperature range of 10 C to 35 C. Properties will vary at higher and lower temperature.

It applies to prevailing torque type nuts

with nominal thread diameters up to and including 39 mm;of triangular ISO thread according to ISO 68;with diameter/pitch combinations according to ISO 261;with thread tolerances 6H according to ISO 965-2;with specific mechanical requirements;with dimensions as specified in product standards provided they make reference to this International Standard;within the temperature range 50 C to +300 C for all metal type nuts;within the temperature range 50 C to +I20 C for non-metallic insert type nuts".

It does not apply to nuts requiring special properties which may require special materials or coatings to improve

weldability;corrosion resistance;performance outside the above specified temperature ranges.

Prevailing torque performance decreases with increasing re-use. The nut user should consider the implications of decreased performance prior to re-use.

Product Details

Published: 11/01/1997 Number of Pages: 20 File Size: 1 file , 1.3 MB