Westfield Fasteners Product Specification:
DIN 982 - Nyloc Nuts, High Type (Type P)
This product guide contains the specification for metric threaded high type nyloc nuts, a range of standard parts available from Westfield Fasteners. The basis of this specification is the DIN standard DIN 982.
A type of prevailing torque nut , hexagon shaped, incorporating a nylon insert to help prevent loosening when fitted. This is the higher profile (Type P) variant with more available thread engagement and is typically fitted with a spanner or ratchet with socket. A lower profile, where perhaps space is at a premium is also available under DIN 985 (Type T).
Scope of the ISO standard.
DIN 982 covers prevailing torque type hexagon nuts with a non metallic insert, and specifies dimensions and tolerances for sizes from M5 up to and including M24. DIN 982 mentions steel as the material, with property classes 8 and 10. It does not mention stainless steel or brass, but the dimensions will be the same.
Table 1 below defines the overall dimensions and tolerances of this nut type.
Although the DIN 982 standard has now been superceded by ISO 7040, off the shelf parts are currently more generally available to the older specification. The ISO standard specifies revised nut heights and across the flats dimensions on certain sizes, but are otherwise interchangable.
