Trapezoidal nut 12x3 left-hand square, brass

Product Description

Trapezoidal nut 12x3 left-hand square, brass

This element is always selected together with the screw - without matching size, pitch and thread hand the mechanism will not fit together. Material: Brass CW614N-M (ex OT58). Left-hand thread Tr 12x3, made in accordance with DIN 103 / ISO 2901-2904.

Technical data

Frequently asked questions

Which trapezoidal screw fits this nut?

Trapezoidal screw Tr 12x3, left-hand - size, pitch and thread hand must be identical to the nut, otherwise the mechanism will jam.

Does this nut need lubrication?

Yes, grease is recommended - the loads are low, but wear resistance without lubrication is limited.

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 does the symbol Tr 12x3 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: Brass CW614N-M (ex OT58) - lighter than steel and more resistant to moisture than carbon steel - a good cost compromise in simpler mechanisms.

How is this nut mounted in the mechanism?

The square outline alone is enough to lock rotation - without the need for a key or locating pin.

Where are 12x3 trapezoidal nuts used?

12x3 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.