S-90969A130 10-24 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 140,000 psi ensures reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
• Superior corrosion resistance provided by the black oxide finish extends service life in harsh environments, minimizing maintenance needs.
• Precision Class 3A thread fit guarantees secure, vibration-resistant connections, enhancing assembly stability and reducing loosening over time.
• Knurled ultra-low socket head offers improved grip and easier installation with standard hex tools, speeding up assembly processes.
• Accurate shoulder dimensions with tight tolerances ensure consistent alignment and smooth rotation in pivot and bearing applications.
• High hardness (Rockwell C30) provides excellent wear resistance, maintaining dimensional integrity under repetitive use.
• Compliance with RoHS 3 and REACH ensures environmental safety and meets global regulatory standards for industrial components.

Professional Applications & Engineering Value

This alloy steel shoulder screw with a 10-24 UNC coarse thread and black oxide finish is engineered to address critical challenges in machinery and equipment assembly. The Class 3A thread fit delivers precise engagement, minimizing backlash in moving parts like linkages and pivots, while the 1/4" shoulder diameter with controlled tolerances ensures accurate positioning for bearings and spacers. Its 140,000 psi tensile strength and Rockwell C30 hardness provide durability against dynamic loads and abrasion, making it ideal for automotive, aerospace, and industrial automation systems. The ultra-low socket head with knurling facilitates quick installation in confined spaces, reducing assembly time and improving workflow efficiency in production lines.

Specification Summary & Compliance

This shoulder screw features a 10-24 UNC coarse thread with Class 3A fit for high precision, a shoulder diameter of 1/4" with tolerance of -0.004" to -0.002", and shoulder length of 1/2" with tolerance of -0.005" to 0.005". It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial components.