S-98935A418 1/2"-8 x 6 ft. ASTM A108 Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• High tensile strength of 64,000 psi ensures reliable performance under heavy loads, reducing the risk of failure in demanding industrial applications.
• Left-hand Acme threading with 0.125" travel per turn provides precise linear motion control, ideal for reverse or specialized positioning systems.
• Class 2G thread fit offers consistent accuracy and smooth engagement with mating nuts, minimizing backlash and wear over time.
• Grade 2 carbon steel construction with Rockwell B61 hardness delivers excellent durability and resistance to deformation, extending service life in harsh environments.
• Fully threaded 6-foot length allows for flexible installation and customization in various machinery setups, saving time on modifications.
• Compliance with ASTM A108 standards guarantees material quality and manufacturing consistency, ensuring interoperability with industry components.
• RoHS 3 and REACH compliant supports environmental safety and regulatory adherence, making it suitable for global supply chains.

Professional Applications & Engineering Value

This 1/2"-8 left-hand Acme lead screw is engineered to address common industrial challenges such as precise linear actuation and reverse motion requirements. Made from Grade 2 carbon steel, it combines high tensile strength and hardness to withstand repetitive stresses in applications like CNC machinery, conveyor systems, and automated positioning equipment. The fully threaded design and Acme thread type provide smooth, efficient power transmission with minimal maintenance, while the left-hand threading allows for unique configurations in clamping or lifting mechanisms. By meeting ASTM A108 specifications and offering consistent Class 2G thread fit, it reduces assembly errors and enhances operational reliability, making it a cost-effective solution for engineers seeking durability and precision in industrial lead screw applications.

Specification Summary & Compliance

This lead screw features a 1/2"-8 Acme thread size with Class 2G thread fit for precise dimensional accuracy, ensuring compatibility with standard nuts. It adheres to ASTM A108 manufacturing standards and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and regulated industries.