S-91808A114 2"-4 Acme Lead Screws and Nuts
Acme Lead Screws and Nuts
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Basic Information
Thread Parameters
Dimension Parameters
Lead Screw Specific Parameters
Nut Parameters
Load & Performance Parameters
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Key Features & Benefits at a Glance
- Exceptional load-bearing capacity with 64,000 psi tensile strength for reliable performance in demanding applications
- Superior wear resistance due to Rockwell B85 hardness, ensuring long service life in continuous operation
- Precision thread engagement with Class 2G fit providing consistent performance and reduced backlash
- Optimized linear motion control through 0.25" travel per turn for accurate positioning in automation systems
- Left-hand thread design enabling specialized applications where reverse threading is required for safety or functionality
- Heavy-duty hex configuration allowing easy installation and removal with standard tools in confined spaces
- Full regulatory compliance with RoHS 3 and REACH standards for international market acceptance
Professional Applications & Engineering Value
This 2"-4 ACME left hand thread hex nut delivers critical engineering solutions for industrial motion control systems where precision and reliability are paramount. The carbon steel Grade 2 construction provides the necessary durability for high-load applications while maintaining cost-effectiveness. The ACME thread form combined with 0.25" travel per turn offers optimal force transmission efficiency in lifting mechanisms, machine tools, and positioning equipment. The left-hand threading is particularly valuable in applications requiring counter-rotational security, such as in certain clamping systems or where multiple threaded components interact. This nut's design effectively addresses common industrial challenges including thread wear, vibration-induced loosening, and precise linear motion control requirements.
Specification Summary & Compliance
Manufactured to precise inch system measurement standards with 2"-4 ACME thread specifications and Class 2G thread fit tolerance for consistent performance. The component meets Grade 2 fastener strength requirements with documented 64,000 psi tensile strength and Rockwell B85 hardness. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial markets and restricted substance management.
