S-92451A585 5/16"-18 x 1 1/4" ASME B18.6.3 Brass Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality brass construction, ensuring long-term reliability in demanding environments
• Enhanced installation precision with Class 2A thread fit providing consistent, reliable fastening performance
• Excellent tensile strength of 50,000 psi withstands substantial mechanical stress in industrial applications
• Optimal flush mounting with 82° countersink angle and standard flat head profile for seamless surface integration
• Full threading design delivers maximum grip length and superior holding power across the entire fastener
• Simplified maintenance and adjustment with standard slotted drive compatible with common tools
• Rockwell B50 hardness provides durable performance while maintaining necessary machinability

Professional Applications & Engineering Value

These brass flat head screws with 5/16"-18 UNC coarse threading are engineered to address critical challenges in electrical, marine, and plumbing applications where corrosion resistance is paramount. The fully threaded design ensures maximum engagement in soft materials and thin sheets, while the 82° countersink angle provides secure, flush mounting that prevents snagging and maintains clean lines. The combination of Rockwell B50 hardness and 50,000 psi tensile strength delivers exceptional durability without compromising the anti-galling properties of brass, making these slotted drive screws ideal for frequent maintenance applications where disassembly may be required. The corrosion-resistant properties of brass make these fasteners particularly valuable in environments exposed to moisture, chemicals, or electrical conductivity requirements.

Specification Summary & Compliance

Manufactured to exacting ASME B18.6.3 specifications with Class 2A thread fit ensuring precise dimensional accuracy and interchangeability. These flat head screws feature right-hand UNC coarse threads with complete compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, guaranteeing they meet the latest international standards for hazardous substance restrictions and chemical safety in industrial applications.