Left-Hand Thread ACME Threaded Rods

Left Hand Thread ACME Threaded Rods, or Left Hand ACME Lead Screws, are a type of fully threaded fastener ideal for generating power through motion.

This component is particularly effective for converting rotary motion into linear motion – typically used for lead screws or power screws in industrial applications as a result e.g. CNC machinery.

They feature a trapezoidal thread form, similar to Left Hand Trapezoidal Threaded Rods but with a slightly reduced thread angle of 29° and a thread height that is half the pitch.

Designed for use with Left Hand Hexagon ACME Threaded Nuts and Left Hand Hexagon ACME Threaded Connector Nuts which are driven in the opposite direction to right-hand threaded nuts. This reverse threading is beneficial for applications where a right-hand threaded component may become loose over time.

These Left Hand Thread ACME Threaded Rods host high strength for increased load bearing capabilities and wear resistance – suitable for use in high torque applications.

Available now at Fastenright in outer diameters ranging from 1/4″ to 2″ as standard, with turns per inch from 4 to 16. Manufactured from Grade 2 Steel and Grade B7 Steel as standard.

We supply several types of Threaded Rod here at Fastenright in a huge range of sizes, materials and finishes to meet your requirements.

Non-standard sizes, materials and finishes are available to order as specials, including small volume manufacture, modifications and bespoke parts made to drawings. Minimum order quantities apply.

1/4″ – 16
3/8″ – 8
3/8″ – 10
3/8″ – 12
1/2″ – 8
1/2″ – 10
5/8″ – 6
5/8″ – 8
3/4″ – 5
3/4″ – 6
3/4″ – 8
7/8″ – 6
1″ – 4
1″ – 5
1″ – 6
1″ – 8
1″ – 10
1. 1/8″ – 5
1. 1/4″ – 4
1. 1/4″ – 5
1. 3/8″ – 4
1. 1/2″ – 4
1. 1/2″ – 5
2″ – 4

= Grade 2 Steel // = Grade B7 Steel Size not listed? Please contact us – we may be able to provide it.