S-98935A761 1 1/4"-4 x 12" ASTM A108 Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Enhanced Load-Bearing Capacity – With a tensile strength of 64,000 psi and Rockwell B61 hardness, this lead screw withstands high-stress applications without deformation.
• Precise Linear Motion Control – The 0.25" travel distance per turn ensures accurate and repeatable positioning for automation and machinery setups.
• Superior Thread Engagement – Class 2G thread fit provides optimal clearance for smooth operation and reduced wear in dynamic systems.
• Durable Carbon Steel Construction – Made from Grade 2 carbon steel, it offers excellent resistance to wear and fatigue in industrial environments.
• Standardized ACME Thread Design – The 1 1/4"-4 fully threaded, right-hand Acme thread ensures compatibility with standard nuts and reliable power transmission.
• Regulatory Compliance Assurance – Meets ASTM A108, RoHS 3, and REACH standards, guaranteeing safety and environmental responsibility.
• Consistent Performance in Harsh Conditions – Fully threaded design and robust material ensure long service life even under continuous use.

Professional Applications & Engineering Value

This 1 1/4"-4 ACME lead screw is engineered to address critical needs in precision linear motion systems, such as CNC machinery, lifting equipment, and automated conveyors. Constructed from Grade 2 carbon steel, it combats common issues like thread stripping and premature wear, thanks to its Class 2G thread fit and fully threaded, right-hand Acme design. The 0.25" travel per turn enables fine control, reducing backlash and enhancing positional accuracy in repetitive industrial tasks. By integrating ASTM A108 specifications, it ensures dimensional consistency and load reliability, making it ideal for high-strength applications where durability and compliance with RoHS and REACH are paramount for operational safety and environmental standards.

Specification Summary & Compliance

This lead screw adheres to precise dimensional tolerances, including Class 2G thread fit and 1 1/4"-4 Acme thread size, with a length of 12 inches. It conforms to ASTM A108 manufacturing standards, ensuring consistent quality and performance. Additionally, the product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in various industrial sectors without hazardous substances.