S-92941A585 5/16"-18 x 1 1/4" ASME B18.2.1 Brass Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality brass construction, ensuring long-term reliability in harsh environments
• Excellent electrical conductivity making these screws ideal for electrical and electronic applications requiring grounding
• Optimized fastening efficiency with UNC coarse threading that resists loosening from vibration and enables quick installation
• High tensile strength rating of 50,000 psi provides reliable performance in demanding mechanical applications
• Precise Class 2A thread fit ensures consistent engagement and proper clamping force in assembly operations
• Durable Rockwell B55 hardness maintains thread integrity through multiple installation cycles
• Full threading design allows for maximum grip length and versatile positioning in various material thicknesses

Professional Applications & Engineering Value

This brass hex head screw delivers exceptional value in applications where corrosion resistance and electrical conductivity are critical. The 5/16"-18 UNC coarse thread configuration provides superior holding power in soft materials and resists vibration-induced loosening, making these industrial hex bolts ideal for electrical panels, marine equipment, plumbing systems, and HVAC assemblies. The external hex drive design enables high-torque installation with standard tools, while the fully threaded construction ensures maximum engagement in varying material thicknesses. These inch fasteners solve common engineering challenges by combining the non-sparking properties of brass with the mechanical strength needed for reliable, long-term fastening solutions in demanding industrial environments.

Specification Summary & Compliance

This 5/16"-18 UNC hex head screw features precise Class 2A thread fit tolerances and is manufactured to ASME B18.2.1 specifications, ensuring dimensional accuracy and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and meets REACH (EC 1907/2006) requirements for chemical safety. With a 1-1/4" length and coarse thread spacing, these screws deliver reliable performance while adhering to industry standards for quality and environmental responsibility.