S-98940A724 3/8"-12 x 3 ft. Fast-Travel Precision Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Enhanced Durability & Corrosion Resistance: Black-oxide coated 4140 alloy steel with hardening to Brinell 271 hardness ensures long service life in demanding industrial environments.
• Superior Precision & Repeatability: ±0.009" per foot travel accuracy guarantees reliable positioning and consistent performance in motion control systems.
• Fast-Travel Efficiency: 2:1 speed ratio and 0.167" travel per turn enable rapid linear movement, increasing operational throughput.
• High Load-Bearing Capacity: 125,000 psi tensile strength provides robust performance under significant mechanical stress and heavy loads.
• Reliable Left-Hand Threading: Fully threaded 3/8"-12 Acme left-hand thread with Class 2C fit offers secure, backlash-resistant engagement for specialized directional applications.
• Regulatory Compliance & Safety: RoHS 3 (2015/863/EU) compliance ensures environmental safety and meets international regulatory standards for industrial components.
• Optimized for Precision Assemblies: Combination of hardened material, precise threading, and strict accuracy tolerances minimizes wear and maintenance requirements.

Professional Applications & Engineering Value

This precision Acme lead screw is engineered to solve critical challenges in industrial automation and motion control systems. The Black-Oxide 4140 alloy steel construction, hardened to Brinell 271, provides exceptional wear resistance and durability, reducing downtime in high-cycle applications. The left-hand Acme threading with Class 2C fit ensures reliable, backlash-free operation in reversing mechanisms and specialized machinery where standard right-hand threads are unsuitable. With its ±0.009" per foot accuracy and 2:1 speed ratio, this fully threaded component delivers precise linear motion control in CNC equipment, 3D printers, and material handling systems, while the 125,000 psi tensile strength handles heavy loads without deformation. The combination of fast-travel capability and robust construction makes it ideal for applications requiring both speed and precision under demanding industrial conditions.

Specification Summary & Compliance

This lead screw features 3/8"-12 left-hand Acme threading with Class 2C thread fit per industry standards, ensuring proper engagement and minimal backlash. The manufacturing process maintains ±0.009" per foot accuracy for travel distance, providing consistent performance in precision applications. The component is fully compliant with RoHS 3 (2015/863/EU) regulations, meeting international environmental and safety standards for industrial use. Additional specifications include a 3 ft length, fully threaded design, 2 thread starts, and 0.167" travel distance per turn, all manufactured to precise engineering tolerances for reliable integration into motion control systems.