S-93516A593 5/16"-18 x 2 1/2" ASME B18.2.1 Bronze Hex Head Screws
Bronze Hex Head Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with 651 Silicon Bronze construction, ideal for marine and harsh industrial environments
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and stress conditions
- Rockwell B70 hardness provides excellent durability and resistance to wear and deformation
- Class 2A thread fit guarantees precise, easy assembly and consistent engagement in UNC coarse threading applications
- External hex drive design allows for quick installation and removal with standard tools, reducing labor time
- Full threading along the 2 1/2" length offers maximum grip and holding power across the entire fastener
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and suitability for regulated industries
Professional Applications & Engineering Value
Engineered for demanding conditions, these 5/16"-18 UNC silicon bronze hex head screws excel in marine applications, chemical processing, and coastal infrastructure where saltwater corrosion and harsh elements are constant challenges. The 651 silicon bronze material naturally resists galvanic and atmospheric corrosion, significantly extending service life and reducing maintenance costs. With a coarse thread and Class 2A fit, these fasteners provide reliable clamping force and vibration resistance in wood, metal, and composite assemblies. The external hex drive ensures secure tool engagement, preventing stripping and enabling efficient installation in confined spaces. Ideal for boat building, offshore platforms, and industrial equipment exposed to moisture, these screws deliver long-term reliability without compromising structural integrity.
Specification Summary & Compliance
This hex head screw features a 5/16"-18 UNC coarse thread with Class 2A tolerance for consistent fit and performance. Manufactured to ASME B18.2.1 specifications, it ensures dimensional accuracy and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting strict environmental and health standards for industrial use.
