S-97345A304 5-40 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel material, ideal for harsh chemical and marine environments.
• High tensile and shear strength (70,000 psi tensile, 35,000 psi shear) ensures reliable performance under heavy loads.
• Precise Class 3A thread fit provides secure, vibration-resistant fastening for critical assemblies.
• Knurled socket head with hex drive allows for easy installation and removal, even in tight spaces.
• Durable Rockwell B79 hardness maintains structural integrity and resists wear over extended use.
• Compliance with RoHS 3 and REACH ensures environmental safety and meets global regulatory standards.
• Coarse UNC threading enables quick assembly and reduced cross-threading risks in industrial applications.

Professional Applications & Engineering Value

This 5-40 UNC shoulder screw in 316 stainless steel is engineered to address common industrial challenges, such as corrosion in aggressive environments and the need for high-strength, precision components. The Class 3A thread fit and coarse thread spacing minimize loosening under vibration, making it ideal for machinery, automotive, and electronic assemblies where reliability is critical. The socket head design with hex drive facilitates efficient installation using standard tools, reducing assembly time. Its high tensile strength and chemical resistance ensure long-term durability in applications like pumps, valves, and conveyor systems, providing consistent performance and reducing maintenance costs.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A precision fit for tight tolerances. Dimensions include a 5-40 thread size, 3/16" thread length, and 9/32" head diameter, with shoulder diameter and length tolerances specified for accurate assembly. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety requirements for industrial use.