S-97345A388 10-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
• Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for high-stress applications
• Precise Class 3A thread fit ensures secure, vibration-resistant fastening with minimal backlash
• Knurled socket head design provides enhanced grip and prevents tool slippage during installation
• Standardized shoulder dimensions maintain consistent alignment and spacing in assembled components
• Comprehensive regulatory compliance meets ASME B18.3 specifications and environmental standards (RoHS 3/REACH)
• Coarse UNC threading enables quick assembly and reduced cross-threading risks in production environments

Professional Applications & Engineering Value

Engineered for precision machinery and industrial equipment, these 316 stainless steel shoulder screws solve critical alignment challenges in rotating assemblies and pivoting mechanisms. The knurled socket head combined with hex drive prevents cam-out under high torque, while the Class 3A UNC thread fit maintains positional accuracy in automated systems. The corrosion-resistant material performs reliably in marine, chemical processing, and food manufacturing applications where moisture and corrosive agents degrade ordinary fasteners. The standardized shoulder diameter acts as precise bearing surface or pivot point, eliminating the need for additional spacers in conveyor systems, robotic arms, and precision instruments.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A thread fit ensuring tight tolerances for diameter and pitch. Shoulder dimensions maintain precision with diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005". Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Mechanical properties certified to 70,000 psi tensile strength and Rockwell B79 hardness for consistent performance.