S-91099A224 6-32 x 3/4" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with passivated 18-8 stainless steel construction for long-term reliability in harsh environments
• Superior mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness to withstand high-stress applications
• Optimized drive engagement through No. 2 Phillips drive design for efficient installation and reduced cam-out risk
• Precise flush mounting capability with undercut flat head profile and 82° countersink angle for seamless surface integration
• Reliable thread performance with Class 2A thread fit and coarse UNC threading ensuring consistent fastening accuracy
• Full-length threading coverage providing maximum grip strength and uniform load distribution across the entire fastener length
• Regulatory compliance assurance meeting ASME B18.6.3 standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

These 6-32 UNC flat head Phillips machine screws deliver critical engineering solutions for industrial applications where corrosion resistance and structural integrity are paramount. The passivated 18-8 stainless steel construction provides exceptional protection against oxidation and chemical exposure, making them ideal for manufacturing equipment, electronic enclosures, and marine applications. The undercut flat head design with 82° countersink angle ensures perfect flush mounting while maximizing surface contact area. With fully threaded construction and coarse thread spacing, these screws offer superior pull-out resistance and vibration tolerance in high-performance assemblies. The combination of 80,000 psi tensile strength and standardized Class 2A thread fit guarantees reliable fastening in critical joints while maintaining installation efficiency through the optimized Phillips drive system.

Specification Summary & Compliance

These machine screws maintain precise Class 2A thread fit tolerances according to UNC threading standards, ensuring consistent engagement and reliable performance. Manufacturing complies with ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. The products are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming adherence to international substance restriction requirements. The right-hand thread direction and standardized coarse thread spacing provide industry-compatible fastening solutions across various applications.