S-91808A009 1/4"-16 Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional durability with Grade 2 Carbon Steel construction providing 64,000 psi tensile strength and Rockwell B85 hardness for long service life in demanding environments
• Precise linear motion control delivering consistent 0.063" travel per turn for accurate positioning applications
• Reliable left-hand thread engagement with Class 2G thread fit ensuring smooth operation and reduced backlash in specialized mechanical systems
• Easy installation and maintenance through standard hex nut design allowing straightforward wrench access and secure fastening
• Optimized single-start threading providing stable power transmission and consistent performance in industrial machinery
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries
• Compact dimensional profile with 1/2" width and 15/64" height enabling space-efficient integration into existing assemblies

Professional Applications & Engineering Value

This left hand Acme hex nut delivers critical engineering value in applications requiring reverse-thread security and precise linear motion control. Manufactured from Grade 2 Carbon Steel with hardened properties (Rockwell B85), it resists wear in high-cycle operations while maintaining 64,000 psi tensile strength for demanding mechanical systems. The Class 2G thread fit provides optimal clearance for smooth operation with Acme lead screws, reducing binding in automated equipment, clamping devices, and positioning systems. The single-start thread design ensures consistent 0.063" travel per turn for accurate linear displacement in industrial automation, printing machinery, and precision adjustment mechanisms where reverse-thread prevention is essential for operational safety.

Specification Summary & Compliance

This 1/4"-16 left hand Acme hex nut features Class 2G thread fit per standard Acme thread specifications, ensuring proper clearance for smooth operation. Dimensional accuracy includes 1/2" width and 15/64" height with single-start threading delivering 0.063" travel per turn. Manufactured from Grade 2 Carbon Steel with mechanical properties including 64,000 psi tensile strength and Rockwell B85 hardness. The component is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental standards for industrial use.