S-96640A177 5/16"-18 x 1 1/2" ASME B18.6.3 Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with Black-Oxide coated 18-8 Stainless Steel, ideal for harsh industrial environments
• High tensile strength of 80,000 psi ensures reliable load-bearing capacity in demanding applications
• Rockwell B80 hardness provides superior durability and resistance to wear and deformation
• Class 2A thread fit with UNC coarse spacing enables quick assembly and secure fastening in various materials
• Standard 82° countersink angle allows for flush mounting, reducing snagging and improving safety
• Fully threaded design maximizes grip length and holding power across the entire fastener
• Compliance with ASME B18.6.3, RoHS 3, and REACH guarantees quality, safety, and environmental standards

Professional Applications & Engineering Value

This 5/16"-18 x 1-1/2" flat head Phillips screw is engineered to address common industrial challenges such as vibration loosening and corrosion. The Black-Oxide 18-8 Stainless Steel construction offers excellent resistance to rust and chemicals, making it suitable for outdoor equipment, machinery, and marine applications. The fully threaded UNC coarse spacing ensures rapid installation and strong retention in wood, metal, and plastic assemblies. With a standard countersink angle of 82°, it provides a smooth, flush finish that minimizes protrusion risks in high-traffic areas. Ideal for OEM manufacturing and maintenance repairs, this screw delivers consistent performance where reliability and regulatory compliance are critical.

Specification Summary & Compliance

This screw features precise Class 2A thread fit and UNC coarse thread specifications, manufactured in accordance with ASME B18.6.3 standards. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and safety requirements for industrial use.