JIS B 1056:2000被替代
Prevailing torque type steel hexagon nuts - Mechanical and performance properties
出版：Japanese Standards Association
专家解读视频
This 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 degree C to 35 degree 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 JIS B 0205 or JIS B 0207; - with diameter/pitch combinations according to JIS B 0205 or JIS B 0207; - with thread tolerances 6H according to JIS B 0209 or JIS B 0211; - with specific mechanical requirements; - with dimensions as specified in product standards provided they make reference to this Standard; - within the temperature range -50 degree C to +300 degree C for all metal type nuts; - within the temperature range -50 degree C to +120 degree 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.
ISO 2320:1997 - Identical
