S-98941A445 1"-5 x 3 ft. ASTM A108 Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Enhanced Durability & Corrosion Resistance: Zinc plating provides superior protection against rust and wear, extending service life in demanding industrial environments.
• High Tensile Strength for Heavy Loads: With a tensile strength of 68,000 psi, this screw reliably handles high-stress applications without failure.
• Precision Linear Motion: The 1"-5 ACME thread and 0.2" travel per turn ensure accurate and predictable linear positioning.
• Superior Thread Quality & Fit: Class 2G thread fit offers optimal clearance for smooth operation with ACME nuts, reducing binding and wear.
• Consistent Material Performance: Made from Grade 2 Carbon Steel with a Rockwell B61 hardness, it provides reliable mechanical properties and impact resistance.
• Broad Industry Compliance: Manufactured to ASTM A108 standards and RoHS 3 compliant, ensuring material quality and environmental safety.
• Versatile & Ready-to-Use: Fully threaded, 3 ft. length, and right-hand thread design allows for immediate integration into various linear motion systems.

Professional Applications & Engineering Value

This 1"-5 ACME lead screw is engineered to solve critical challenges in linear motion systems where precision, strength, and longevity are paramount. The zinc plated carbon steel construction combats corrosion in humid or industrial settings, preventing premature failure. The ACME thread form is specifically designed for power transmission, offering high efficiency and load-bearing capacity with minimal backlash. Its 0.2" travel per turn provides excellent control for positioning in machinery such as CNC tables, lifts, and presses. By meeting ASTM A108 specifications, it guarantees consistent dimensional accuracy and material integrity, reducing maintenance downtime and ensuring reliable performance in repetitive, high-duty cycles. This makes it an ideal component for engineers seeking a durable, RoHS compliant solution for industrial automation and mechanical drive systems.

Specification Summary & Compliance

This product features a Class 2G thread fit per standard ACME specifications, ensuring proper engagement and operational clearance. The manufacturing process and material quality strictly adhere to ASTM A108, confirming its mechanical properties and dimensional tolerances. It is fully RoHS 3 (2015/863/EU) Compliant, meeting stringent environmental regulations for hazardous substance restrictions. The screw is fully threaded, right-hand direction, with a 1"-5 thread size and a standard 1:1 speed ratio, designed for direct, efficient power transmission in compliant industrial applications.