S-92183A323 5/16"-18 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments and reducing replacement frequency.
• Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance in high-stress applications.
• Precise Class 3A thread fit ensures tight, secure fastening with minimal backlash, enhancing assembly accuracy and joint integrity.
• Enhanced grip and tool engagement from the knurled socket head and 5/32" hex drive, preventing slippage during installation and removal.
• Durable and wear-resistant with Rockwell B55 hardness, maintaining thread and shoulder integrity over repeated use cycles.
• Versatile coarse UNC threading (5/16"-18) allows for quick assembly and disassembly, improving maintenance efficiency.
• Compliant with RoHS 3 and REACH regulations, ensuring safety and environmental standards are met for global industrial supply chains.

Professional Applications & Engineering Value

These 18-8 Stainless Steel shoulder screws are engineered to address critical challenges in machinery, automation, and precision equipment assembly. The Class 3A thread fit and coarse UNC threading provide excellent vibration resistance and ease of alignment, reducing installation time and preventing loosening in dynamic operations. The knurled socket head with a 5/32" hex drive ensures secure tool engagement, minimizing wear on drive tools and enhancing operator safety. Ideal for use in pivots, spacers, and rotating components, these screws offer reliable shoulder diameter and length tolerances, ensuring precise positioning and load distribution. Their high tensile and shear strength makes them suitable for heavy-duty applications, while the stainless steel material resists corrosion, extending service life in demanding environments like manufacturing, automotive, and aerospace.

Specification Summary & Compliance

This product adheres to UNC coarse thread standards with a 5/16"-18 thread size and Class 3A thread fit for high precision. Dimensions include a shoulder diameter of 5/16" with tolerances from -0.004" to -0.002", and shoulder length tolerances from -0.002" to 0.002". Manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental and safety standards. The screws feature a right-hand thread direction and standard shoulder fit, supporting consistent performance in industrial fastener applications.