S-91802A371 12-24 x 1/2" ASME B18.6.3 Stainless Steel Phillips Oval Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from passivated 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for demanding industrial applications
• Optimized drive engagement through Phillips No. 3 drive system, preventing cam-out and enabling efficient installation
• Precision thread performance with Class 2A UNC coarse threads providing reliable fastening and vibration resistance
• Enhanced flush mounting capability with standard oval head profile and 82° countersink angle for clean, professional finishes
• Full-threaded design advantage ensuring maximum grip length and load distribution across the entire fastener
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

These 12-24 UNC oval head Phillips flat head screws deliver critical engineering solutions where corrosion resistance and structural integrity are paramount. The passivated 18-8 stainless steel construction provides exceptional protection against oxidation and chemical exposure, making these fasteners ideal for marine equipment, food processing machinery, and outdoor industrial applications. The fully threaded design combined with coarse UNC threads ensures maximum holding power in various materials, while the oval head profile with 82° countersink angle creates seamless, flush-mounted assemblies that prevent snagging and improve safety. Engineered to withstand 80,000 psi tensile loads, these screws address common failure points in vibration-prone environments, offering reliable performance in automotive, aerospace, and heavy equipment assemblies where fastener integrity cannot be compromised.

Specification Summary & Compliance

Manufactured to exacting ASME B18.6.3 standards with Class 2A thread fit tolerance for consistent performance. Features 12-24 UNC coarse threads with right-hand orientation and 1/2" length dimensions. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. The passivated surface treatment enhances corrosion resistance while maintaining the mechanical properties of 18-8 stainless steel with Rockwell B80 hardness and 80,000 psi tensile strength.