S-93516A132 5/16"-18 x 5" 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, thanks to 651 Silicon Bronze construction
• High tensile strength of 70,000 PSI ensures reliable load-bearing capacity and structural integrity in demanding applications
• Rockwell B70 hardness provides superior durability and resistance to wear, deformation, and galling during installation
• Fully threaded 5/16"-18 UNC coarse thread design delivers faster installation and improved grip in various materials
• Class 2A thread fit guarantees consistent, precise engagement with standard nuts and tapped holes for secure fastening
• External hex drive and hex head allow for easy installation with common tools, reducing assembly time and labor costs
• Compliance with ASME B18.2.1, RoHS 3, and REACH ensures adherence to industry standards and environmental safety regulations

Professional Applications & Engineering Value

Engineered for marine, coastal, and chemical processing environments, these 651 Silicon Bronze hex head screws solve critical corrosion and strength challenges. The silicon bronze material offers inherent resistance to saltwater, acids, and atmospheric corrosion, preventing premature failure in offshore structures, shipbuilding, and water treatment facilities. The coarse UNC thread and fully threaded design provide maximum pull-out resistance in wood, composite, and soft metals, while the external hex drive ensures straightforward installation with standard wrenches. Ideal for permanent fastening in harsh conditions, these screws reduce maintenance frequency and enhance operational safety by maintaining 70,000 PSI tensile strength under continuous stress.

Specification Summary & Compliance

This 5/16"-18 UNC x 5" hex head screw features a Class 2A thread fit for standard tolerance and compatibility, with coarse threading for efficient assembly. Manufactured to ASME B18.2.1 specifications, it ensures dimensional accuracy and mechanical consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances and adherence to environmental safety standards for global industrial use.