S-98941A300 1 1/2"-4 x 6 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 in demanding industrial environments, extending service life.
• High Tensile Strength for Demanding Loads: With a tensile strength of 68,000 psi, this screw reliably handles high-stress applications without failure.
• Precision Movement Control: The 0.25" travel distance per turn ensures accurate and predictable linear motion, ideal for positioning systems.
• Superior Thread Engagement & Fit: Class 2G thread fit offers excellent assembly tolerance, reducing the risk of binding and ensuring smooth operation.
• Industry-Standard Compliance & Reliability: Manufactured to ASTM A108 specifications, guaranteeing consistent quality and material integrity.
• Optimized for Heavy-Duty Applications: The large 1 1/2"-4 ACME thread form and Grade 2 strength are engineered for high-load mechanical systems.
• Environmentally Conscious Manufacturing: RoHS 3 compliance ensures the product meets strict environmental regulations for hazardous substances.

Professional Applications & Engineering Value

This 1 1/2"-4 ACME lead screw is engineered to solve critical challenges in industrial automation and heavy machinery. The zinc plated carbon steel construction combats corrosion, a common failure point in humid or abrasive settings, while the Grade 2 strength rating and 68,000 psi tensile strength ensure it can withstand significant axial loads without deformation. The fully threaded design with a 0.25" travel per turn provides precise linear motion control, making it indispensable for applications like CNC machine tables, lifting equipment, and precision actuators. Its right-hand thread and Class 2G fit guarantee reliable, backlash-resistant performance with standard Acme nuts, reducing maintenance downtime and improving system longevity.

Specification Summary & Compliance

This lead screw features a 1 1/2"-4 ACME thread with a Class 2G thread fit for optimal assembly tolerance. It is manufactured from zinc plated carbon steel to ASTM A108 material specifications, ensuring dimensional accuracy and mechanical properties. The product is fully RoHS 3 (2015/863/EU) Compliant, confirming it is free from restricted hazardous substances. Key mechanical properties include a tensile strength of 68,000 psi and a hardness of Rockwell B61.