S-98940A715 3/8"-12 x 3 ft. Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional dimensional stability with ±0.009" per foot travel accuracy for reliable, repeatable linear motion control.
• Superior strength and durability from hardened 4140 alloy steel construction, capable of withstanding 125,000 psi tensile loads.
• Enhanced wear resistance and corrosion protection provided by the black-oxide surface finish on the Brinell 271 hardness material.
• Precise left-hand Acme threading with Class 2C fit ensures smooth engagement and optimal performance in specialized motion applications.
• Consistent 0.083" travel distance per turn from the single-start thread design for predictable and accurate linear displacement.
• Full 3-foot length and fully threaded design offers versatility for integration into various industrial linear motion systems.
• Compliance with RoHS 3 regulations guarantees the product meets international environmental and safety standards for industrial components.

Professional Applications & Engineering Value

This high-precision Acme lead screw is engineered to solve critical challenges in industrial automation and motion control systems. The hardened 4140 alloy steel core provides exceptional resistance to deformation under high loads, while the black-oxide finish adds a layer of corrosion resistance, extending service life in demanding environments. The left-hand Acme threading with a Class 2C thread fit is ideal for applications requiring reverse or counter-directional linear motion, such as clamping mechanisms, precision positioning tables, and CNC machinery. Its ±0.009" per foot accuracy ensures minimal backlash and consistent performance, reducing maintenance downtime and improving overall system reliability in industrial linear motion applications.

Specification Summary & Compliance

This lead screw adheres to Class 2C thread fit standards for Acme threads, ensuring precise tolerances and compatibility with corresponding nuts. Manufactured from hardened 4140 alloy steel with a tensile strength of 125,000 psi and Brinell 271 hardness, it meets rigorous industrial requirements. The product is fully RoHS 3 (2015/863/EU) Compliant, confirming its adherence to restricted hazardous substance directives for safe use in various engineering and manufacturing sectors.