S-93516A123 5/16"-18 x 7/8" ASME B18.2.1 Bronze Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance for long-lasting performance in marine and harsh industrial environments
• High tensile strength of 70,000 psi ensures reliable load-bearing capacity in demanding applications
• Rockwell B70 hardness provides excellent durability and resistance to wear and deformation
• Fully threaded UNC coarse pattern enables faster installation and superior holding power
• External hex drive design allows for easy installation with standard tools and high torque application
• Class 2A thread fit guarantees precise dimensional accuracy and smooth assembly
• Compliant with major industry standards including ASME B18.2.1, RoHS 3, and REACH for regulatory peace of mind

Professional Applications & Engineering Value

These 651 Silicon Bronze hex head screws deliver exceptional engineering value where corrosion resistance is critical. The silicon bronze material provides natural protection against saltwater corrosion and chemical exposure, making them ideal for marine applications, coastal structures, and harsh industrial environments. The UNC coarse thread pattern combined with external hex drive ensures quick, secure installations while maintaining structural integrity under vibration and load stress. With fully threaded design and 70,000 psi tensile strength, these screws offer reliable fastening solutions for equipment assembly, marine hardware, and infrastructure projects where failure is not an option.

Specification Summary & Compliance

Manufactured to precise Class 2A thread fit tolerances with UNC coarse thread pattern (5/16"-18) in inch system measurements. Complies with ASME B18.2.1 manufacturing specifications for dimensional accuracy and performance. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards, ensuring safe use in regulated industrial applications worldwide.