S-90780A583 5/16"-18 x 1" ASTM F468, MIL-S-1222 Nickel Alloy Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 400 Nickel material, ideal for harsh industrial environments
• Exceptional mechanical strength with 80,000 psi tensile strength for heavy-duty applications
• Reliable thread engagement with Class 2A thread fit ensuring consistent assembly performance
• Maximum fastening efficiency with fully threaded UNC coarse threads for quicker installation
• Enhanced durability with Rockwell B80 hardness maintaining structural integrity under stress
• Standardized compatibility with external hex drive design fitting common industrial tools
• Regulatory compliance assurance meeting ASTM F468, MIL-S-1222, RoHS 3 and REACH standards

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 5/16-18 UNC hex head screws deliver exceptional performance in corrosive environments where reliability is critical. The 400 Nickel material provides outstanding resistance to oxidation and chemical exposure, while the coarse thread design ensures secure fastening in various substrates. The external hex drive allows for high-torque installation, making these fully threaded screws ideal for heavy machinery, marine equipment, chemical processing systems, and structural assemblies requiring 80,000 psi tensile strength. Their compliance with military and industrial standards guarantees consistent quality for engineering projects where failure is not an option.

Specification Summary & Compliance

These hex head screws feature precise Class 2A thread fit with UNC coarse threading (5/16"-18) and are manufactured to exact dimensional standards. The fasteners comply with ASTM F468 and MIL-S-1222 specifications for material and performance requirements. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring they meet current environmental and safety standards for industrial use worldwide.