S-92941A591 5/16"-18 x 2" ASME B18.2.1 Brass Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to high-quality brass construction, ideal for harsh industrial environments
• Excellent mechanical strength with 50,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing performance
• Easy installation and removal with external hex drive and standard 1/2" head width for common tool compatibility
• Secure thread engagement through UNC coarse threading and Class 2A fit, reducing cross-threading risks
• Optimized partial threading providing 7/8" minimum thread length for focused clamping force in specific applications
• Regulatory compliance assurance meeting ASME B18.2.1 standards and environmental regulations including RoHS 3 and REACH
• Dimensional precision with consistent 2" length and right-hand threading for predictable assembly performance

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 5/16"-18 UNC brass hex head screws deliver exceptional performance where corrosion resistance and mechanical reliability are critical. The brass material provides inherent protection against rust and galvanic corrosion, making these hex head screws ideal for marine, plumbing, and electrical applications. The coarse UNC threading ensures quick assembly and superior holding power in soft materials or where vibration resistance is required. With partial threading design, these fasteners concentrate clamping force precisely where needed, while the external hex drive accommodates standard wrenches for efficient installation in confined spaces. These characteristics make them particularly valuable in maintenance operations, equipment manufacturing, and infrastructure projects where long-term reliability and regulatory compliance are paramount.

Specification Summary & Compliance

This 5/16"-18 UNC brass hex head screw features precise Class 2A thread fit tolerances ensuring consistent performance across applications. Manufacturing complies with ASME B18.2.1 specifications for dimensional accuracy and mechanical properties. The product meets stringent environmental standards including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance, confirming adherence to hazardous substance restrictions. With 0.3125" thread diameter and 2" overall length, these screws maintain exacting dimensional standards for reliable integration into industrial assemblies and equipment.