S-92183A271 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments and extended service life.
• Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under high-stress conditions.
• Precise alignment and secure pivoting ensured by the 1/4" shoulder diameter with tight tolerances, reducing wear and misalignment in assemblies.
• High-accuracy thread engagement with Class 3A fit and 8-32 UNC coarse threads for easy assembly and vibration resistance.
• Secure and non-slip installation facilitated by the hex socket drive and knurled head, allowing for high torque application without tool slippage.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global markets.
• Versatile shoulder length options from 0.13" to 1.99" to accommodate various design requirements and application thicknesses.

Professional Applications & Engineering Value

This 18-8 Stainless Steel Shoulder Screw is engineered to address critical challenges in precision machinery and industrial equipment. The 1/4" shoulder diameter with controlled tolerances provides a stable bearing surface, minimizing radial play and wear in rotating assemblies such as gears, pulleys, and linkages. Its 8-32 UNC coarse thread with a Class 3A fit ensures quick, secure fastening and superior resistance to loosening under dynamic loads. The combination of 70,000 psi tensile strength and Rockwell B55 hardness guarantees durability in high-stress applications, from automotive components to conveyor systems. The hex socket drive and knurled head enhance grip during installation, reducing the risk of damage in tight spaces. Compliant with RoHS 3 and REACH, it meets stringent environmental standards, making it a reliable choice for OEMs and maintenance teams seeking long-term performance and regulatory adherence.

Specification Summary & Compliance

This shoulder screw adheres to precise dimensional standards, including a Class 3A thread fit for high accuracy and an UNC coarse thread profile. The shoulder diameter tolerance is maintained between -0.004" to -0.002", with shoulder length tolerance from -0.002" to 0.002" to ensure consistent performance. Manufactured in accordance with inch system measurements, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial applications.