S-90340A119 5/16"-18 x 3/4" Socket Head Screws for Square-Drive Wrenches

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and reducing long-term replacement costs.
• Superior load-bearing capability from a high 70,000 PSI tensile strength, ensuring reliable performance under significant stress.
• Precise and secure thread engagement due to the Class 3A fit, minimizing the risk of loosening in high-vibration applications.
• High-torque installation enabled by the 1/4" square drive and high-profile socket head, providing a secure grip for efficient assembly.
• Excellent mechanical durability with a Rockwell B84 hardness, offering great resistance to wear and deformation.
• Broad compatibility with the 5/16"-18 UNC coarse thread, allowing for quick assembly and disassembly in general-purpose industrial applications.
• Global compliance assurance by meeting RoHS 3 and REACH regulations, making them suitable for use in regulated markets and sensitive projects.

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this 18-8 Stainless Steel Socket Head Cap Screw provides a robust solution where corrosion resistance and high strength are non-negotiable. The Class 3A thread fit and UNC coarse threads ensure a precise, vibration-resistant connection in machinery, automotive assemblies, and heavy equipment, reducing maintenance downtime. The fully threaded design offers consistent clamping force along the entire 3/4" length, while the high-profile socket head and 1/4" square drive accommodate high torque for secure fastening in confined spaces. Its reliable performance makes it a go-to fastener for engineers prioritizing longevity and compliance in their designs.

Specification Summary & Compliance

This Socket Head Cap Screw adheres to UNC thread standards with a precision Class 3A fit for tight tolerances. Dimensions include a 5/16"-18 thread size and a 3/4" length in the inch system. It is manufactured to deliver 70,000 PSI tensile strength and Rockwell B84 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial use.