S-91858A626 3/8"-16 x 1 1/4" ASME B18.6.3 Stainless Steel Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh industrial environments
• Exceptional tensile strength rated at 70,000 psi ensures reliable performance under high-stress applications
• Precision flush mounting with 82° countersink angle and flat head design for seamless surface integration
• Optimized thread engagement through fully threaded UNC coarse pattern with Class 2A fit for secure fastening
• Enhanced durability with Rockwell B80 hardness maintaining structural integrity through repeated use
• Broad compliance coverage meeting ASME B18.6.3 standards plus RoHS 3 and REACH environmental regulations
• Universal inch system compatibility with right-hand thread direction for straightforward installation

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 3/8"-16 UNC flat head screws provide critical solutions where corrosion resistance and structural integrity are paramount. The 316 stainless steel composition combined with passivated finish delivers exceptional protection against chemical exposure and atmospheric corrosion, making them ideal for marine, chemical processing, and food industry applications. The fully threaded design with coarse UNC threading ensures maximum grip strength in various materials, while the 82° countersink angle guarantees flush surface mounting that eliminates protrusion issues in precision assemblies. These slotted flat head screws maintain consistent performance where vibration resistance and long-term reliability are essential, supported by their 70,000 psi tensile strength and controlled Class 2A thread fit for predictable installation torque values.

Specification Summary & Compliance

This flat head screw features precision 3/8"-16 UNC coarse threads with Class 2A thread fit tolerance for consistent engagement. Manufacturing complies with ASME B18.6.3 specifications ensuring dimensional accuracy and performance reliability. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming restriction of hazardous substances. The right-hand thread direction and fully threaded configuration provide standardized installation across industrial applications requiring inch system fasteners.