S-98948A220 1 1/4"-5 Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Left-hand thread design enables counter-clockwise tightening for specialized machinery and safety applications where reverse motion is required
• 0.2" travel distance per turn provides precise linear positioning control for accurate motion transfer in lead screw assemblies
• Zinc plated carbon steel construction offers excellent corrosion resistance while maintaining structural integrity in industrial environments
• Class 2G thread fit ensures optimal clearance and smooth operation with standard Acme lead screws, reducing binding and wear
• Rockwell B75 hardness delivers durable performance with sufficient toughness to withstand repeated use in demanding applications
• Hex nut configuration allows for easy installation and removal using standard wrench tools, simplifying maintenance procedures
• Single thread start design provides consistent, predictable motion characteristics for reliable system performance

Professional Applications & Engineering Value

This 1 1/4"-5 Left Hand Acme hex nut delivers exceptional value in industrial applications requiring reverse-thread functionality and precise linear motion control. The zinc plated carbon steel construction provides superior corrosion protection while maintaining the Rockwell B75 hardness needed for long-term durability in demanding environments. The Class 2G thread fit ensures smooth engagement with mating screws, minimizing friction and preventing galling in high-cycle applications. Particularly valuable in machinery where standard right-hand threads could loosen due to rotational forces, this left-hand Acme nut offers reliable performance in presses, clamping systems, and positioning equipment where reverse thread direction is essential for operational safety and functionality. The combination of precise 0.2" travel per turn and robust construction makes it ideal for applications requiring accurate linear positioning with consistent repeatability.

Specification Summary & Compliance

This precision Acme hex nut features a 1 1/4"-5 left-hand thread with Class 2G thread fit per Acme thread standards, ensuring proper clearance and operational smoothness. Manufactured from carbon steel with zinc plating for enhanced corrosion resistance and maintaining Rockwell B75 hardness for consistent performance. The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest industry standards for hazardous substance restrictions and chemical safety protocols.