S-91771A244 10-24 x 5/8" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Exceptional mechanical strength offering 80,000 psi tensile strength and Rockwell B80 hardness for reliable performance under high-stress conditions.
• Precise Class 2A thread fit ensures smooth installation and secure fastening with reduced risk of cross-threading in coarse UNC threads.
• Optimized flush mounting with standard 82° countersink angle and flat head design for seamless integration into assembled components.
• Efficient installation using standard Phillips No. 2 drive, providing common tool compatibility and reducing assembly time.
• Full threading along the 5/8" length maximizes grip and load distribution across the entire fastener engagement area.
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH.

Professional Applications & Engineering Value

These 10-24 UNC flat head screws deliver critical engineering value in applications requiring reliable fastening with corrosion resistance. The passivated 18-8 stainless steel construction prevents oxidation and chemical degradation, making them ideal for machinery, electrical enclosures, and marine equipment where moisture and corrosive agents are present. The coarse thread design provides superior holding power in softer materials and plastics, while the 82° countersink angle ensures a flush finish that eliminates protrusions in precision assemblies. With fully threaded construction and Phillips drive compatibility, they enable rapid installation in high-volume manufacturing and maintenance operations, reducing labor costs and improving project timelines.

Specification Summary & Compliance

This fastener maintains Class 2A thread fit tolerances per UNC standards, ensuring consistent engagement and mechanical integrity. Manufacturing follows ASME B18.6.3 specifications for dimensional accuracy and performance. The product is verified as RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming adherence to strict environmental and safety regulations for industrial components.