S-98941A420 3/8"-8 x 3 ft. ASTM A108 Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Precise linear motion control with consistent 0.125" travel per turn for reliable positioning in automated systems
• Enhanced durability and corrosion resistance through zinc plating on carbon steel, extending service life in industrial environments
• High load-bearing capacity with 68,000 psi tensile strength and Rockwell B61 hardness for demanding applications
• Smooth, reliable engagement with Class 2G thread fit ensuring proper clearance and reduced binding
• Optimized for power transmission using Acme thread design that provides efficient force transfer with minimal backlash
• Full-length threading versatility allowing for continuous adjustment and positioning along the entire 3-foot length
• Regulatory compliance assurance meeting ASTM A108 standards and RoHS 3 requirements for global market acceptance

Professional Applications & Engineering Value

This 3/8-8 ACME lead screw delivers exceptional performance in precision motion control systems where reliability and accuracy are paramount. The zinc plated carbon steel construction provides superior corrosion resistance while maintaining the Grade 2 strength rating necessary for continuous operation in industrial settings. The Acme thread form is specifically engineered for power transmission applications, offering excellent wear resistance and efficient force transfer in machinery such as CNC equipment, linear actuators, and positioning tables. With its fully threaded right-hand design and consistent 0.125" travel per turn, this component ensures predictable linear motion, reducing system calibration time and maintenance requirements. The combination of 68,000 psi tensile strength and proper Class 2G thread fit addresses common challenges of thread wear and binding, making it ideal for repetitive motion applications in manufacturing, automation, and material handling systems.

Specification Summary & Compliance

This precision ACME lead screw features 3/8"-8 thread size with Class 2G thread fit tolerance, ensuring proper engagement and operational clearance. Manufactured from carbon steel with zinc plating surface treatment, the component delivers 68,000 psi tensile strength and Rockwell B61 hardness. The screw is fully compliant with ASTM A108 manufacturing specifications and meets RoHS 3 (2015/863/EU) environmental standards, providing assurance of quality and regulatory compliance for industrial applications worldwide.