S-93516A203 5/8"-11 x 3/4" ASME B18.2.1 Bronze Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance for long-lasting performance in marine and harsh industrial environments
• High tensile strength of 70,000 psi provides reliable load-bearing capacity for demanding applications
• Rockwell B70 hardness ensures superior durability and resistance to wear and deformation
• Fully threaded UNC coarse pattern delivers faster installation and improved grip in various materials
• Class 2A thread fit guarantees precise, consistent engagement with standard nuts and tapped holes
• External hex drive design allows for high-torque installation with common tools
• Comprehensive compliance with ASME B18.2.1, RoHS 3, and REACH ensures quality and environmental safety

Professional Applications & Engineering Value

Engineered for maximum reliability in corrosive environments, these silicon bronze hex head screws provide critical protection against saltwater degradation and chemical exposure. The 651 silicon bronze material maintains structural integrity while offering excellent marine-grade corrosion resistance, making them ideal for shipbuilding, offshore platforms, and coastal infrastructure. The UNC coarse thread pattern ensures rapid installation and superior holding power in wood, metal, and composite materials. With fully threaded design and external hex drive, these fasteners deliver consistent clamping force and accommodate high-torque applications where vibration resistance is paramount. Their combination of 70,000 psi tensile strength and Rockwell B70 hardness makes them suitable for structural connections in demanding industrial settings.

Specification Summary & Compliance

This 5/8"-11 UNC silicon bronze hex head screw features precise Class 2A thread fit per ASME B18.2.1 specifications, ensuring dimensional accuracy and reliable performance. The manufacturing process adheres to ASME B18.2.1 standards for dimensional consistency and mechanical properties. Environmental compliance includes RoHS 3 (2015/863/EU) compliance for restricted substance control and REACH (EC 1907/2006) compliance addressing Substances of Very High Concern. The inch system measurements, including 3/4" length and 15/16" head width, provide standardized compatibility with existing industrial equipment and applications.