S-91249A384 5/16"-18 x 3/4" ASME B18.6.3 Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide coated 18-8 Stainless Steel, ideal for harsh industrial environments
• High tensile strength of 70,000 psi ensures reliable performance in demanding applications
• Rockwell B70 hardness provides excellent durability and resistance to wear
• Fully threaded design offers maximum grip and uniform load distribution
• Coarse UNC thread enables quick installation and reduced cross-threading risks
• Phillips drive with No. 4 size allows for efficient, secure fastening with standard tools
• Compliance with ASME B18.6.3, RoHS 3, and REACH ensures quality and environmental safety

Professional Applications & Engineering Value

These Black-Oxide 18-8 Stainless Steel Rounded Head Screws are engineered to address common industrial challenges, such as corrosion in outdoor or chemical-exposed settings. The 5/16"-18 UNC coarse thread and Class 2A fit provide precise, reliable fastening in machinery, construction, and automotive assemblies, minimizing loosening under vibration. With a pan head style and Phillips drive, they offer easy installation and a low-profile finish, enhancing both efficiency and aesthetics in heavy-duty applications. Their fully threaded design ensures consistent clamping force, making them ideal for securing components where strength and longevity are critical.

Specification Summary & Compliance

This screw features a 3/4" length with UNC coarse threads and Class 2A thread fit for standard tolerance. It complies with ASME B18.6.3 manufacturing specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe and reliable use in various industries.