S-93410A414 3/8"-12 x 3 ft. ASTM A193 Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional durability with ASTM Grade B7 alloy steel construction, resisting wear in high-cycle industrial applications.
• Precise motion control from the 0.083" travel per turn, ensuring accurate and repeatable linear positioning.
• Reliable left-hand thread engagement with Class 2G fit, providing secure connections in specialized assembly setups.
• High load-bearing capacity supported by 125,000 psi tensile strength and Rockwell C35 hardness for demanding environments.
• Full-length usability as a fully threaded 3 ft. component, offering flexibility in various installation configurations.
• Compliance with global standards including ASTM A193, RoHS 3, and REACH, ensuring safety and environmental responsibility.
• Optimized for reverse-motion systems using the left-hand ACME thread design, ideal for unique mechanical drives.

Professional Applications & Engineering Value

This 3/8"-12 ACME left-hand thread lead screw is engineered to solve critical challenges in precision motion control systems. Manufactured from ASTM Grade B7 alloy steel, it delivers high tensile strength and hardness (Rockwell C35) to withstand repetitive loads and harsh operational conditions without deformation. The fully threaded design and left-hand thread direction provide versatility for applications requiring reverse linear motion, such as clamping mechanisms, adjustable fixtures, and specialized machinery where standard right-hand threads are unsuitable. With a consistent 0.083" travel per turn, it ensures smooth and accurate positioning, reducing backlash and enhancing operational efficiency in industrial automation, CNC equipment, and heavy-duty actuators. By integrating ACME threading and robust material properties, this component minimizes maintenance downtime and extends service life in demanding B2B environments.

Specification Summary & Compliance

This lead screw adheres to Class 2G thread fit tolerances for reliable assembly, with 3/8"-12 ACME left-hand threads meeting standardized dimensions. It conforms to ASTM A193 manufacturing specifications for high-temperature service and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances. The component’s alloy steel composition and ASTM Grade B7 classification guarantee consistent performance under stresses up to 125,000 psi tensile strength.