S-93410A449 3/4"-8 x 3 ft. ASTM A193 Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 125,000 psi tensile strength for reliable performance in demanding industrial applications
• Superior wear resistance and durability due to Rockwell C35 hardness and ASTM Grade B7 alloy steel construction
• Precise motion control with 0.125" travel per turn and Class 2G thread fit ensuring accurate positioning
• Left-hand threading provides specialized directional movement for unique mechanical system requirements
• Full-length engagement capability through fully threaded design for maximum contact and load distribution
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe industrial use
• Standardized compatibility with ASTM A193 specifications for reliable integration into existing systems

Professional Applications & Engineering Value

This 3/4"-8 Left Hand Acme Lead Screw delivers critical engineering solutions for precision motion control systems requiring reverse-direction operation. The ASTM Grade B7 alloy steel construction provides exceptional strength-to-weight ratio, while the Acme thread form offers superior power transmission efficiency compared to standard V-threads. The left-hand threading is particularly valuable in applications where conventional right-hand screws would create unsafe conditions or interfere with system dynamics. With 0.125" travel per turn, this component ensures predictable linear motion in industrial automation, heavy machinery positioning systems, and precision manufacturing equipment. The combination of 125,000 psi tensile strength and Rockwell C35 hardness makes it ideal for high-load applications where screw deflection and wear are primary concerns, significantly extending service life in continuous operation environments.

Specification Summary & Compliance

This Acme lead screw features precise Class 2G thread fit tolerances and standardized 3/4"-8 Acme thread dimensions for reliable performance. Manufactured to ASTM A193 Grade B7 specifications, it ensures consistent mechanical properties and dimensional accuracy. The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety standards for industrial components. With fully threaded construction and left-hand thread direction, this screw maintains strict adherence to industrial threading standards while providing specialized functionality for reverse-motion applications.