S-91500A622 3/8"-16 x 3/4" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 stainless steel construction, ideal for harsh environments and chemical exposure
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B80 hardness for reliable load-bearing performance
• Precision thread engagement with Class 2A coarse UNC threads ensuring secure fastening and vibration resistance
• Streamlined flush installation featuring standard 82° countersink angle and flat head design for smooth surface finishing
• Enhanced drive stability with No. 4 Phillips drive providing positive torque transmission and reduced cam-out risk
• Full-length threading across the entire 3/4" length offers maximum grip and adjustment flexibility
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and environmental standards (RoHS 3, REACH)

Professional Applications & Engineering Value

These 316 stainless steel flat head screws deliver critical performance in demanding industrial applications where corrosion resistance and structural integrity are paramount. The passivated finish enhances surface durability while maintaining the material's inherent resistance to chlorides and acidic environments. Engineered with UNC coarse threads and Class 2A thread fit, these fasteners provide reliable installation in various substrates while resisting loosening under vibration. The combination of 70,000 psi tensile strength and fully threaded design ensures maximum holding power in machinery assembly, marine equipment, chemical processing systems, and food processing applications where hygiene and durability requirements are stringent.

Specification Summary & Compliance

This 3/8"-16 UNC flat head Phillips screw features precise dimensional control with Class 2A thread fit per ASME B18.6.3 specifications. The coarse thread spacing and standard 82° countersink angle ensure proper seating and flush installation. Manufacturing compliance includes adherence to ASME B18.6.3 standards for dimensional requirements, along with full compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for restricted substances.