S-92941A582 5/16"-18 x 7/8" ASME B18.2.1 Brass Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from brass construction for long-lasting performance in humid or corrosive industrial environments
• Exceptional mechanical strength with 50,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing applications
• Quick and secure installation through external hex drive design providing excellent torque transmission and slip resistance
• Optimized thread engagement with Class 2A thread fit ensuring consistent, vibration-resistant fastening in coarse thread applications
• Full threading coverage along the 7/8" length enables maximum grip depth and adjustment flexibility
• Regulatory compliance assurance meeting ASME B18.2.1 standards for dimensional accuracy and quality consistency
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance for sustainable procurement

Professional Applications & Engineering Value

These 5/16"-18 UNC brass hex head screws deliver critical performance advantages in demanding industrial settings where corrosion resistance and mechanical reliability are paramount. The brass material provides inherent protection against galvanic corrosion and chemical degradation, making these external hex drive fasteners ideal for plumbing systems, marine equipment, electrical enclosures, and chemical processing applications. The coarse thread design ensures rapid installation and superior holding power in soft materials or applications requiring frequent maintenance. With fully threaded construction and Class 2A thread fit, these screws maintain consistent clamping force while resisting vibration-induced loosening, addressing common failure points in dynamic industrial environments. The combination of 50,000 psi tensile strength and Rockwell B55 hardness provides the durability needed for structural assemblies while maintaining the machinability and non-sparking properties essential in hazardous locations.

Specification Summary & Compliance

This 5/16"-18 UNC brass hex head screw features precise Class 2A thread fit tolerances with coarse thread spacing for optimal performance. The fastener maintains dimensional compliance with ASME B18.2.1 manufacturing standards, ensuring interchangeability and reliability across industrial applications. Environmental and safety compliance is verified through RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance, confirming the absence of restricted substances. The right-hand thread direction and external hex drive configuration provide industry-standard installation compatibility with common tools and equipment.