S-91781A242 10-24 x 1/2" ASME B18.6.3 Stainless Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for reliable, long-term performance
• Precision thread engagement with Class 2A fit and UNC coarse threads ensuring secure fastening and vibration resistance
• Flush surface installation with standard 82° countersink angle and flat head design for smooth, unobtrusive assemblies
• Wide compatibility with fully threaded right-hand design and standard slotted drive for versatile tool access
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH
• Optimized dimensional consistency with 0.362" head diameter and 1/2" length providing reliable repeatability in manufacturing

Professional Applications & Engineering Value

These 10-24 UNC flat head screws deliver critical performance in demanding industrial applications where corrosion resistance and mechanical integrity are paramount. The 18-8 stainless steel composition, enhanced by passivated finish, provides exceptional protection against chemical exposure and atmospheric corrosion in manufacturing facilities, marine environments, and food processing equipment. The coarse thread design ensures rapid installation and superior holding power in softer materials or applications subject to vibration. With fully threaded construction and Class 2A fit, these screws maintain consistent clamping force across the entire fastener length, preventing loosening in dynamic load conditions. The standard flat head profile with 82° countersink angle creates seamless surface finishes in precision assemblies while the slotted drive accommodates both manual and automated installation processes.

Specification Summary & Compliance

Manufactured to exacting dimensional standards with Class 2A thread fit tolerance and UNC coarse thread profile (10-24 specification). Compliant with ASME B18.6.3 mechanical standards for dimensional consistency and performance. Meets environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance for restricted substance control. Thread specifications include right-hand direction, 0.19" thread diameter, and standardized 82° countersink angle for proper seating in matched countersunk holes.