S-91781A296 12-24 x 1" 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 offering 80,000 psi tensile strength and Rockwell B80 hardness for reliable, long-term fastening
• Precision thread engagement with Class 2A UNC coarse threads ensuring consistent fit and reduced cross-threading risks
• Flush mounting capability due to standard 82° countersink angle and flat head design for smooth, unobtrusive surfaces
• Broad industrial compliance meeting ASME B18.6.3 specifications and environmental standards including RoHS 3 and REACH
• Full-threaded design providing maximum grip and load distribution along the entire 1" length
• Easy manual installation with slotted drive for straightforward assembly using standard tools

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this 12-24 UNC flat head screw addresses critical fastening challenges where surface flushness and corrosion resistance are paramount. The 18-8 stainless steel material combined with passivated finish creates a robust barrier against chemical exposure and atmospheric corrosion, significantly extending service life in machinery, electrical enclosures, and outdoor equipment. The fully threaded design with Class 2A thread fit ensures maximum thread contact area, distributing mechanical loads evenly to prevent joint failure under vibration or thermal cycling. The standardized 82° countersink angle and flat head profile enable seamless integration into precision components where protrusions are unacceptable, while the slotted drive maintains compatibility with traditional assembly methods.

Specification Summary & Compliance

This flat head machine screw maintains precise Class 2A thread fit per UNC standards with coarse thread spacing for optimal engagement. Manufacturing complies with ASME B18.6.3 specifications ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to strict environmental and safety standards for industrial components.