Trapezoidal nut 18x4 right-hand flanged, bronze

Product Description

Trapezoidal nut 18x4 right-hand flanged, bronze

In many machines it is this nut, not the screw, that wears first - which is why the quality of the material and the thread is particularly important here. Made of Tin bronze CuSn5Zn5Pb5-C (CC491K), right-hand thread Tr 18x4, in accordance with DIN 103 / ISO 2901-2904.

Technical data

Frequently asked questions

Which trapezoidal screw fits this nut?

Selection is simple: the same designation Tr 18x4, the same thread hand (right-hand) - nothing else needs to be checked.

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.

Does a standard trapezoidal nut have backlash in the thread?

Yes, some backlash results from the manufacturing tolerance of the thread - this is normal. If you need zero backlash (e.g. for precise positioning), anti-backlash nuts are used, which are a different product from a standard nut.

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.

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 flange with mounting holes allows quick, rigid fixing to the body without an additional housing.

Where are 18x4 trapezoidal nuts used?

Typical applications of 18x4 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.