Trapezoidal nut 20x4 right-hand square with holes, bronze

Product Description

Trapezoidal nut 20x4 right-hand square with holes, bronze

A well-chosen trapezoidal nut limits backlash in the mechanism and extends the service life of the entire screw-and-nut system. Material: Tin bronze CuSn12-C (CC483K). Right-hand thread Tr 20x4, made in accordance with DIN 103 / ISO 2901-2904.

Technical data

Frequently asked questions

Which trapezoidal screw fits this nut?

Trapezoidal screw Tr 20x4, right-hand - size, pitch and thread hand must be identical to the nut, otherwise the mechanism will jam.

What does the symbol Tr 20x4 mean?

"Tr" is a symmetrical trapezoidal thread (flank angle 30°). The first number is the outer diameter of the screw in millimetres, the second is the thread pitch, i.e. the linear travel per full turn.

Does this nut need lubrication?

Yes - good grease is recommended, because this is a sliding element working under load. Lack of lubrication accelerates thread wear.

What are the properties of this nut's material?

Material: Tin bronze CuSn12-C (CC483K) - good sliding properties and a low coefficient of friction in the thread, typical of nuts working in motion.

How is this nut mounted in the mechanism?

The square body with mounting holes can be screwed directly to a machine part - the shape additionally prevents rotation.

How can you tell that a trapezoidal nut is worn?

The most common sign is increasing backlash between the screw and the nut - noticeable jerking when the direction of motion changes. This means the nut thread has worn and needs to be replaced.

Where are 20x4 trapezoidal nuts used?

20x4 trapezoidal nuts are used in screw jacks, presses, vices, positioning tables, linear axes of CNC machines and tensioning mechanisms - wherever the rotary motion of a screw must be converted into precise, repeatable linear motion.

Product photos are for illustration purposes.