S-90337A492 5/16"-18 Shoulder Screws

Key Features & Benefits at a Glance

• Extended service life with TiCN coating providing superior wear and corrosion resistance in demanding industrial environments
• Precise component alignment through the accurately machined shoulder with tight diameter tolerance (-0.001" to 0") and length tolerance (0" to 0.002")
• High-strength performance with 70,000 psi tensile strength and Rockwell B55 hardness for reliable operation under heavy loads
• Secure fastening achieved through Class 2A thread fit and UNC coarse threads that resist loosening in high-vibration applications
• Space-efficient installation with low-profile socket head design requiring minimal clearance while providing 5/32" hex drive accessibility
• Corrosion resistance from 18-8 stainless steel construction ensuring long-term reliability in harsh operating conditions
• Regulatory compliance meeting RoHS 3 and REACH standards for use in regulated industries and global markets

Professional Applications & Engineering Value

This precision shoulder screw delivers exceptional engineering value in applications requiring exact component positioning and rotational control. The TiCN coated 18-8 stainless steel construction provides superior surface hardness and chemical resistance, significantly extending service life in high-wear environments like automated machinery, precision instruments, and motion control systems. The precisely machined 3/4" shoulder length with tight tolerances ensures accurate alignment of moving parts, while the 5/16"-18 UNC coarse threads with Class 2A fit provide secure fastening that resists vibration-induced loosening. The low-profile socket head design allows installation in confined spaces without compromising drive accessibility. These features make this shoulder screw ideal for pivot points, bearing mounts, and precision linkages where dimensional stability and long-term reliability are critical.

Specification Summary & Compliance

This shoulder screw features Class 2A thread fit per UNC standards with precise shoulder dimensions (diameter tolerance: -0.001" to 0", length tolerance: 0" to 0.002"). Manufactured from 18-8 stainless steel with TiCN coating, it delivers 70,000 psi tensile strength and Rockwell B55 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and suitability for global industrial applications.