Trapezoidal nut 18x4 right-hand cylindrical, steel

Product Description

Trapezoidal nut 18x4 right-hand cylindrical, steel

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. Material: Steel 11SMnPb37 (1.0737). Right-hand thread Tr 18x4, made in accordance with DIN 103 / ISO 2901-2904.

Technical data

Frequently asked questions

Which trapezoidal screw fits this nut?

You need a screw Tr 18x4 with the same thread hand (right-hand) and the same pitch - other sizes will not fit together.

What does the symbol Tr 18x4 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.

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.

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 are the properties of this nut's material?

Material: Steel 11SMnPb37 (1.0737) - a strong base material, resistant to high axial forces in fastening joints.

How is this nut mounted in the mechanism?

The cylindrical body is designed to be installed inside a housing or mounting sleeve.

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.