Trapezoidal nut 20x4 left-hand flanged, bronze

Product Description

Trapezoidal nut 20x4 left-hand flanged, bronze

It is the basic element of every screw-and-nut drive - it converts the rotary motion of the screw into the linear motion of the mechanism. Standard DIN 103 / ISO 2901-2904, material Tin bronze CuSn5Zn5Pb5-C (CC491K), left-hand thread Tr 20x4 - parameters fully compliant with the trapezoidal screw drive standard.

Technical data

Frequently asked questions

Which trapezoidal screw fits this nut?

Selection is simple: the same designation Tr 20x4, the same thread hand (left-hand) - nothing else needs to be checked.

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.

How do the material families of trapezoidal nuts differ?

Steel is chosen for fastening joints without sliding motion, bronze for drives with continuous sliding motion (low friction), and brass for lighter applications where moisture resistance matters at a lower cost than bronze.

What does the symbol Tr 20x4 mean?

The designation "Tr" indicates a trapezoidal thread with a symmetrical 30° profile. The first number is the nominal diameter in mm, the second is the pitch - the distance the nut travels per turn of the screw.

What are the properties of this nut's material?

Material: Tin bronze CuSn5Zn5Pb5-C (CC491K) - 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 holes in the flange allow the nut to be screwed directly to the moving part of the machine, without an intermediate sleeve.

Where are 20x4 trapezoidal nuts used?

Typical applications of 20x4 nuts are: presses and screw jacks, machine vices, height adjustment mechanisms, sliding tables and axis drives in machine tools - wherever precise conversion of rotary into linear motion matters.

Product photos are for illustration purposes.