S-98948A121 1"-4 Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Enhanced Durability & Corrosion Resistance: Zinc plated carbon steel construction provides reliable protection against rust and wear in demanding industrial environments.
• Precision Thread Engagement: Class 2G thread fit ensures consistent, smooth mating with lead screws, reducing backlash and improving operational accuracy.
• Efficient Linear Motion: 0.25" travel distance per turn enables controlled and predictable linear movement, ideal for precise positioning applications.
• Robust Mechanical Strength: Rockwell B75 hardness offers excellent resistance to deformation under load, maintaining thread integrity over time.
• Standardized Compatibility: 1"-4 ACME thread design and right-hand threading ensure broad interoperability with common industrial lead screw systems.
• Secure Hex Installation: Hex nut design allows for easy and stable wrenching, facilitating straightforward assembly and maintenance.
• Global Compliance Assurance: Meets RoHS 3 and REACH environmental standards, supporting responsible sourcing and use in regulated markets.

Professional Applications & Engineering Value

This 1"-4 ACME hex nut is engineered for precision linear motion systems where reliability and accuracy are paramount. The zinc plated carbon steel material combats corrosion in harsh settings like manufacturing plants and automation equipment, extending service life. Its Class 2G thread fit and ACME thread type deliver smooth, low-friction engagement with lead screws, minimizing wear and preventing jamming in high-cycle applications such as CNC machinery, lifting devices, and valve actuators. The 0.25" travel per turn provides fine control for positioning tasks, while the right-hand thread direction ensures compatibility with standard drive systems. By integrating Rockwell B75 hardness, the nut withstands repetitive loads without galling, offering a cost-effective solution for maintaining precision in industrial motion control.

Specification Summary & Compliance

This nut features a 1"-4 ACME thread size with Class 2G thread fit for precise dimensional tolerance, adhering to standard inch measurement systems. It is manufactured from zinc plated carbon steel with a hardness of Rockwell B75 and includes a single thread start for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety requirements for industrial use.