S-97646A318 5/16"-18 x 2" 18-8 Stainless Steel Serrated-Flange Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments.
• Exceptional tensile strength of 100,000 psi ensures reliable performance under high-stress applications.
• Enhanced locking security with serrated flange design that prevents loosening from vibration.
• Easy installation and removal using standard external hex drive tools for efficient maintenance.
• Precise thread engagement with UNC coarse Class 2A threads for quick assembly and consistent fit.
• Full threading along the 2" length provides maximum grip and uniform clamping force distribution.
• Compliance with environmental regulations including RoHS 3 and REACH for safe, sustainable use.

Professional Applications & Engineering Value

This 5/16"-18 x 2" Hex Head Flange Screw is engineered to address common industrial challenges such as vibration-induced loosening and corrosion degradation. Made from 18-8 Stainless Steel, it offers excellent resistance to rust and chemicals, making it suitable for outdoor equipment, machinery assemblies, and marine applications. The serrated locking flange bites into surfaces to maintain clamping force without needing additional washers, while the UNC coarse thread and Class 2A fit ensure rapid, accurate installation in coarse-threaded components. With a Rockwell B100 hardness and fully threaded design, it delivers consistent performance in heavy-duty fastening, reducing maintenance downtime and enhancing operational reliability.

Specification Summary & Compliance

This fastener features a 5/16"-18 UNC coarse thread with Class 2A dimensional accuracy for reliable fit. It meets manufacturing standards for external hex drive and flanged screw designs, and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material sustainability.