S-99030A075 3/4"-8 x 3 ft. Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional travel accuracy of ±0.009" per foot ensures reliable and repeatable positioning for your motion control systems.
• Durable 1018 Carbon Steel construction with a tensile strength of 64,000 psi provides robust performance in demanding industrial environments.
• Class 2C thread fit offers a free-running assembly with ample clearance, reducing binding and wear for smoother operation.
• Brinell 126 hardness delivers excellent resistance to deformation, extending the service life of the screw under heavy loads.
• 0.125" travel per turn with a 1:1 speed ratio provides precise and predictable linear movement for automated applications.
• Fully threaded, right-hand Acme design ensures consistent force transmission and compatibility with standard nut assemblies.
• 3-foot length offers versatility for a wide range of machine layouts and linear motion requirements.

Professional Applications & Engineering Value

This 3/4"-8 Acme Lead Screw is engineered to solve critical challenges in industrial automation and precision machinery. Manufactured from 1018 Carbon Steel, it provides the ideal balance of strength and machinability, resisting the high cyclic stresses common in CNC equipment, lifting mechanisms, and conveyor systems. The Acme thread type and Class 2C thread fit are specifically chosen to minimize friction and backlash, delivering smooth, efficient motion control without the need for frequent adjustment. Its high tensile strength and defined travel accuracy make it a reliable component for applications where positional repeatability and long-term durability are non-negotiable, reducing machine downtime and maintenance costs.

Specification Summary & Compliance

This lead screw adheres to Acme thread standards with a 3/4"-8 thread size and a Class 2C thread fit, providing standardized interchangeability. The manufacturing ensures a travel distance accuracy of ±0.009" per foot. It is supplied in a 3 ft length and is fully threaded with a right-hand, single-start thread. The component is compliant with common industrial material specifications for 1018 Carbon Steel.