S-92012A599 10-32 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional Strength and Durability: Crafted from high-grade alloy steel with a Rockwell C32 hardness and 140,000 psi tensile strength, this shoulder screw withstands heavy loads and resists deformation in demanding applications.
• Superior Corrosion Resistance: The black oxide finish provides a protective layer, significantly enhancing the screw's longevity and performance in harsh or humid industrial environments.
li>Precision Alignment and Bearing Surface: The precisely machined 2" shoulder length with a tight diameter tolerance ensures accurate component location and serves as a reliable pivot or axle, reducing wear on assembled parts.
• Reliable and Secure Fastening: The 10-32 UNF fine thread with a Class 2A fit offers excellent engagement and vibration resistance, ensuring connections remain tight and secure over time.
• Easy Installation in Confined Spaces: The socket head with a hex drive allows for high-torque installation and removal using standard Allen keys, making it ideal for applications with limited access.
• Compliance and Global Acceptance: Meets RoHS 3 and REACH compliance standards, ensuring the screw is safe for use in various international markets and environmentally conscious manufacturing processes.
• Optimized for Inch-System Machinery: Designed to the inch system of measurement, this screw is a direct replacement and upgrade for existing equipment, ensuring seamless integration and performance.

Professional Applications & Engineering Value

This alloy steel shoulder screw is engineered to solve critical alignment and pivot-point challenges in precision industrial applications. The extended, 2-inch shoulder acts as a precise dowel or axle within a bushing or bearing, eliminating the need for separate spacers and reducing assembly complexity. The black oxide finish combats corrosion, making it suitable for machinery operating in non-lubricated or mildly corrosive environments. The combination of UNF fine thread and a Class 2A thread fit provides a secure, vibration-resistant fastening solution for moving parts in automation equipment, jigs, fixtures, and precision instruments. Its high tensile strength ensures reliability in high-stress assemblies, delivering long-term performance and reducing maintenance downtime.

Specification Summary & Compliance

This precision shoulder screw adheres to critical dimensional and performance standards. The thread is manufactured to a Class 2A fit for consistent, reliable engagement. Key specifications include a shoulder diameter of 1/4" with a tight tolerance of -0.001" to 0" and a shoulder length of 2". The screw is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of restricted hazardous substances and suitable for global industrial supply chains.