S-91249A387 5/16"-18 x 2" 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 construction, ideal for harsh environments
• Exceptional tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
• Rockwell B70 hardness provides excellent durability and resistance to wear and deformation
• Fully threaded UNC coarse spacing delivers faster installation and superior holding power in various materials
• Class 2A thread fit guarantees consistent, precise engagement for reduced assembly issues
• Phillips No. 4 drive pan head design offers secure, flush mounting with easy driver access
• Compliance with ASME B18.6.3, RoHS 3, and REACH ensures safety, quality, and environmental standards are met

Professional Applications & Engineering Value

Engineered for demanding industrial settings, these black-oxide 18-8 stainless steel screws address common challenges like corrosion, high stress, and regulatory compliance. The fully threaded UNC coarse spacing enables quick, secure fastening in metal, wood, and composite assemblies, reducing installation time while maintaining 70,000 psi tensile strength. The Phillips pan head design ensures a low-profile, stable fit, minimizing protrusion in machinery, automotive, and construction applications. With Rockwell B70 hardness and black-oxide coating, they resist rust and wear in humid or chemical-exposed environments, providing long-term reliability and reducing maintenance costs for B2B users.

Specification Summary & Compliance

This screw features a 5/16"-18 UNC thread with Class 2A fit for precise dimensional accuracy and coarse spacing. It adheres to ASME B18.6.3 manufacturing standards, ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances and safe for industrial use.