Philidas
Philidas manufactures all-metal self-locking nuts rated for safety-critical applications, used by organisations including Network Rail. PTS supplies two Philidas ranges, Philidas Industrial Nuts and Philidas Turret Nuts, both built around the same all-metal locking principle used across the wider self-locking nut category.
Materials
Philidas nuts are all-metal, with the locking action engineered entirely into the metal components rather than a plastic insert.
FAQs
What's the difference between Philidas Industrial and Turret nuts?
Manufacturers commonly split an all-metal locking nut range into a general-purpose "Industrial" line for everyday engineering use, and a "Turret" (or similarly named) line intended for a narrower, more demanding application niche — such as specific machinery or rail-type fixings. Philidas follows this same pattern: Industrial Nuts are the range to specify for general engineering use, while Turret Nuts are suited to the more specific applications the range was developed for. Contact PTS or refer to the Philidas datasheet to confirm which range is correct for a given application.
How does a Philidas nut differ from a nylon insert nut?
A Philidas nut is all-metal and safety-critical rated, with no plastic insert to wear, degrade with temperature, or be affected by chemical exposure. This makes it suited to applications — such as rail infrastructure — where a locking nut needs to perform reliably over a long service life without the insert-related limitations of a nylon insert nut.