S-95270A519 5/8"-8 ASTM B16 Acme Lead Screws and Nuts

Key Features & Benefits at a Glance

• Superior corrosion resistance and electrical conductivity with 360 Brass construction, ideal for harsh environments and specialized applications.
• Precise and predictable linear movement with a 0.125" travel distance per turn, ensuring accurate positioning in automated systems.
• Reliable, backlash-resistant engagement due to the Class 2G thread fit, providing a consistent and secure connection with mating screws.
• Enhanced durability and wear resistance from the Rockwell B55 hardness, extending the nut's service life in high-cycle operations.
• Guaranteed material quality and consistency through compliance with the ASTM B16 standard for free-cutting brass.
• Versatile mounting and integration offered by the square nut design, simplifying installation in various assemblies.
• Specialized motion control capability with the left-hand Acme thread, enabling reverse or counter-rotational linear drive systems.

Professional Applications & Engineering Value

This precision 5/8-8 ACME left-hand thread brass nut is engineered to solve critical challenges in linear motion systems. The 360 Brass material offers excellent machinability and inherent corrosion resistance, making it suitable for applications where steel components would be prone to rust, such as in marine, food processing, or chemical environments. The Acme thread form is designed to handle high thrust loads efficiently, while the left-hand thread direction provides essential functionality for complex mechanical assemblies requiring reverse motion or to prevent loosening in clockwise-rotating systems. With a Class 2G thread fit, it ensures a balance between free movement and minimal play, reducing backlash and improving the accuracy of positioning tables, actuators, and valve controls. This nut delivers reliable performance where precision, durability, and material compatibility are paramount.

Specification Summary & Compliance

This square nut features a 5/8-8 ACME left-hand thread with a Class 2G thread fit per standard inch series requirements, ensuring proper clearance and functional tolerance. It is manufactured from 360 Brass and conforms to the ASTM B16 specification for brass rod, bar, and shapes. The component has a Rockwell B55 hardness and provides a 0.125" travel per turn with a single start thread. This product is compliant with RoHS and REACH environmental directives, making it suitable for use in regulated industries.