S-93516A581 5/16"-18 x 3/4" ASME B18.2.1 Bronze Hex Head Screws
Bronze Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance for extended service life in marine and harsh industrial environments
- High tensile strength of 70,000 psi ensures reliable load-bearing capacity and structural integrity
- Rockwell B70 hardness provides excellent durability and resistance to wear and deformation
- Coarse UNC thread design enables faster installation and better performance in softer materials
- Fully threaded construction offers maximum grip length and uniform stress distribution
- External hex drive design allows for high-torque installation with standard tools
- Class 2A thread fit ensures consistent, reliable engagement while maintaining easy assembly
Professional Applications & Engineering Value
These 651 Silicon Bronze hex head screws deliver exceptional performance where corrosion resistance is critical. The 5/16"-18 UNC coarse thread configuration provides superior holding power in marine equipment, chemical processing installations, and coastal structures. The external hex drive enables secure installation with common tools, while the fully threaded design ensures maximum contact surface for vibration resistance. Engineered with 70,000 psi tensile strength and Rockwell B70 hardness, these fasteners maintain structural integrity under demanding conditions, making them ideal for saltwater applications, offshore platforms, and industrial environments where stainless steel alternatives may suffer from stress corrosion cracking.
Specification Summary & Compliance
This hex head screw features precision 5/16"-18 UNC coarse threads with Class 2A thread fit tolerance for consistent performance. Manufactured to ASME B18.2.1 specifications, the fastener ensures dimensional accuracy and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications requiring verified material safety and environmental responsibility.
