Metal Self Locking Nuts - Philidas Nuts - UNF

We stock various brands of all metal self-locking nuts, including Aerotight, Cleveloc, Philidas, Philidas Turret, Stover and Binx nuts.

Self locking nuts work by using increased friction between the threads of the two mating faces to cause a slight distortion of the threads. They are frequently used in areas where vibration is experienced.

Self locking nuts can be re-used, but only a few times before they lose their inherent locking qualities.

Stiff nuts, jam nuts and bent beam nuts are all terms that are used to describe self-locking nuts.

UNF stands for Unified National Fine. It is a common imperial thread type with more threads per axial distance than its UNC equivalent.

Unified thread types (UNF and UNC) were introduced at the beginning of World War 2 to enable the interchangeability of machinery manufacturing between the USA, Canada and Great Britain. Still commonly found on a vast array of old machines and vehicles in the UK, UNF and UNC threads continue to be the standard thread in the USA and Canada.

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