S-97345A448 10-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and chemical exposure
• Precise component alignment ensured by the 1/4" shoulder diameter with tight tolerance control
• High mechanical strength delivering 70,000 psi tensile and 35,000 psi shear strength for demanding loads
• Secure, vibration-resistant installation with Class 3A thread fit and coarse UNC threading for reliable fastening
• Easy installation and removal using the hex drive socket and knurled head for improved grip
• Long-term reliability backed by Rockwell B79 hardness and compliance with ASME B18.3 standards
• Environmentally safe operation meeting RoHS 3 and REACH regulations for industrial applications

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion-induced failure, and mechanical stress in rotating assemblies. The 10-24 UNC coarse thread with Class 3A precision fit ensures secure fastening in high-vibration environments, while the knurled socket head allows for easy torque application without slippage. Its 3/8" thread length and precisely machined shoulder provide stable pivoting and spacing in machinery, automation systems, and precision instruments. The material’s inherent resistance to chlorides and acids makes it suitable for marine, chemical processing, and food-grade equipment, reducing maintenance costs and downtime.

Specification Summary & Compliance

This shoulder screw adheres to Class 3A thread fit tolerances per ASME B18.3 specifications, with shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005". It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material traceability for industrial procurement.