S-92451A587 5/16"-18 x 1 1/2" ASME B18.6.3 Brass Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality brass construction, ideal for humid or marine environments
• Precise flush mounting with 82° countersink angle and flat head design for seamless surface integration
• Exceptional mechanical strength with 50,000 psi tensile strength and Rockwell B50 hardness for heavy-duty applications
• Reliable thread engagement through Class 2A thread fit and UNC coarse threading for vibration resistance
• Full-length threading ensures maximum grip and load distribution across the entire fastener length
• Industry-standard compliance with ASME B18.6.3 specifications for consistent performance and interchangeability
• Environmental responsibility through RoHS 3 and REACH compliance for safe industrial usage

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these brass flat head screws solve critical challenges in machinery assembly, electrical enclosures, and marine hardware. The UNC coarse threading provides superior resistance to loosening under vibration, while the 82° countersink angle ensures perfect flush mounting in metal, wood, and composite materials. The Rockwell B50 hardness and 50,000 psi tensile strength deliver reliable performance in high-stress environments, making them ideal for permanent installations where corrosion resistance and mechanical integrity are paramount. The slotted drive style offers compatibility with standard tools for efficient installation across maintenance and manufacturing operations.

Specification Summary & Compliance

Manufactured to ASME B18.6.3 specifications with Class 2A thread fit tolerance for precise engagement. Features 5/16"-18 UNC coarse threads and full threading along the 1-1/2" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in regulated industries.