S-93190A582 5/16"-18 x 7/8" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh chemical and marine environments
• Exceptional 70,000 psi tensile strength ensures reliable performance under high-stress industrial applications
• Class 2A thread fit with UNC coarse spacing provides easy, rapid assembly and reduced cross-threading risks
• External hex drive and hex head design allows for high-torque installation using standard tools
• Full threading along the 7/8" length delivers maximum grip and uniform load distribution
• Rockwell B70 hardness rating maintains structural integrity and resists wear over repeated use
• Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees quality, safety, and environmental standards

Professional Applications & Engineering Value

Engineered for demanding industrial settings, this 5/16"-18 UNC hex head screw in 316 stainless steel addresses critical challenges like corrosion-induced failure and assembly inefficiency. The coarse thread spacing and Class 2A thread fit minimize installation time while preventing stripping, making it ideal for machinery, structural frameworks, and marine equipment. Its external hex drive ensures secure tool engagement, even in confined spaces. With a 70,000 psi tensile strength and fully threaded design, it sustains heavy loads and vibration, reducing maintenance needs in chemical processing, offshore, and construction applications.

Specification Summary & Compliance

This fastener adheres to Class 2A thread tolerance per UNC standards, with precise dimensions: 5/16"-18 thread size, 7/8" length, and coarse spacing. Manufactured to ASME B18.2.1 specifications, it ensures dimensional accuracy and interchangeability. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets environmental and safety requirements for global industrial use.