S-91770A864 12-24 x 2" ASME B18.6.3 Stainless Steel Truss Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction for long-term reliability in harsh environments
• Enhanced load distribution through wide rounded truss head design that reduces surface pressure and prevents material damage
• High tensile strength of 70,000 psi ensures reliable performance in demanding industrial applications
• Optimized installation efficiency with Phillips No. 3 drive and coarse UNC threading for faster assembly
• Precision thread fit (Class 2A) guarantees consistent engagement and vibration resistance
• Partial threading design provides superior clamping force control for specific fastening requirements
• Full regulatory compliance with ASME B18.6.3, RoHS, and REACH standards for quality assurance

Professional Applications & Engineering Value

These 12-24 UNC partially threaded screws with rounded truss head design solve critical engineering challenges in industrial fastening. The passivated 18-8 stainless steel construction provides exceptional corrosion resistance, making them ideal for applications exposed to moisture, chemicals, or outdoor elements. The unique truss head profile offers a larger bearing surface than standard heads, distributing clamping force more effectively to prevent damage to softer materials. With Rockwell B70 hardness and 70,000 psi tensile strength, these fasteners maintain integrity under substantial loads while the partial threading allows precise control over clamping distance. The Phillips No. 3 drive and coarse UNC threads ensure quick installation in manufacturing, assembly lines, and maintenance operations where speed and reliability are paramount.

Specification Summary & Compliance

Manufactured to exacting standards with Class 2A thread fit tolerance for consistent performance and UNC coarse thread spacing for rapid installation. These rounded truss head screws comply with ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. The 2" length with minimum 1½" thread length provides optimal engagement. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and material transparency throughout the supply chain.