S-97832A296 5/16"-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ensuring longevity in harsh industrial environments
• Exceptional mechanical strength with 70,000 psi tensile strength and 35,000 psi shear strength for reliable performance under heavy loads
• Precise Class 3A thread fit delivers secure, vibration-resistant connections in critical assemblies
• Knurled socket head design provides enhanced grip and prevents tool slippage during installation
• Tight shoulder tolerances maintain accurate component alignment and rotational stability
• Comprehensive regulatory compliance with RoHS 3 and REACH standards for global market acceptance
• Fine UNF thread profile offers superior holding power and resistance to loosening in dynamic applications

Professional Applications & Engineering Value

This 18-8 stainless steel shoulder screw delivers critical performance advantages in precision mechanical systems where alignment accuracy and corrosion resistance are paramount. The Class 3A thread fit and UNF fine thread configuration ensure vibration-resistant fastening in rotating assemblies, while the precisely machined shoulder provides stable bearing surfaces for gears, pulleys, and linkages. The knurled socket head with 3/16" hex drive facilitates secure tool engagement in confined spaces. Engineered to ASME B18.3 specifications, these shoulder screws solve alignment challenges in automation equipment, precision instruments, and machinery where dimensional stability under load is critical. The combination of corrosion-resistant material and high-strength characteristics makes them ideal for demanding applications in manufacturing, aerospace, and marine environments.

Specification Summary & Compliance

Manufactured to exacting standards with Class 3A thread fit precision and tight shoulder tolerances (diameter: -0.004" to -0.002", length: -0.005" to 0.005"). Complies with ASME B18.3 specifications for dimensional accuracy and mechanical properties. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements. Features 5/16"-24 UNF fine threads, 3/8" shoulder diameter, and 5/16" shoulder length with standard shoulder fit for consistent performance across industrial applications.