S-7549K89 M12 x 3/4" DIN 103 Metric Precision Lead Screws and Nuts

Key Features & Benefits at a Glance

• Exceptional wear resistance and corrosion protection from manganese bronze construction, extending service life in demanding industrial environments.
• Precise 3mm linear travel per revolution for accurate and repeatable positioning in automated systems and machinery.
• High 75,000 psi tensile strength and 1100 lbs dynamic thrust capacity to handle significant loads reliably without failure.
• Superior thread engagement and minimal backlash ensured by the 7H thread fit class, enhancing motion control precision.
• Guaranteed dimensional consistency and interchangeability through compliance with the DIN 103 metric trapezoidal thread standard.
• Optimized for smooth, right-hand thread operation in standard mechanical drive applications, ensuring predictable performance.
• Robust Brinell 126 hardness provides excellent resistance to deformation under load, maintaining thread integrity.

Professional Applications & Engineering Value

This M12 metric trapezoidal lead screw nut is engineered to solve critical challenges in precision linear motion systems. The manganese bronze material offers an ideal combination of high strength, inherent lubricity, and superior corrosion resistance, drastically reducing wear and maintenance frequency compared to steel components. Its 3mm pitch and 7H thread fit deliver exceptional positional accuracy and minimal backlash, which is vital for CNC machinery, automated positioning tables, and high-precision actuators. The DIN 103 compliant trapezoidal thread form ensures efficient power transmission and smooth operation, making it a reliable choice for engineers seeking durability and long-term performance in industrial automation, packaging equipment, and material handling systems.

Specification Summary & Compliance

This externally threaded nut features an M12 x 3mm metric trapezoidal thread with a 7H thread fit class per ISO standards, ensuring high precision and interchangeability. It is manufactured to conform to the DIN 103 specification for trapezoidal screw threads. The component is designed with a right-hand thread direction, a travel distance of 3mm per turn, and an external thread size of 15/16"-16 UN. This product meets common industry requirements for material and dimensional standards, providing reliable performance in regulated engineering applications.