Acme screws

The trapezoidal thread form is a common leadscrew thread profile that offers high strength with ease of manufacture.

It is typically found where large loads or high accuracy are required, as in a vise or the lead screw of a lathe.

Standardized variations include multiple-start threads, left-hand threads, and self-centering threads which are less likely to bind under lateral forces. The thread angle is 30°.

• D= 10 – 80 mm
• pitch: 2 – 24 mm
• Lmax: 6000 mm