S-93516A597 5/16"-18 x 4" 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
- Exceptional 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 superior durability and resistance to wear and deformation
- Fully threaded 4" length with UNC coarse thread delivers maximum grip and faster installation
- Class 2A thread fit guarantees precise, consistent engagement with mating components
- External hex drive design enables easy installation with standard tools and high torque application
- Compliance with ASME B18.2.1, RoHS 3, and REACH ensures quality, safety, and environmental responsibility
Professional Applications & Engineering Value
These 651 Silicon Bronze hex head screws are engineered specifically for challenging environments where corrosion resistance and structural integrity are paramount. The marine-grade silicon bronze material provides exceptional protection against saltwater corrosion, making these UNC coarse thread screws ideal for marine construction, offshore platforms, and coastal infrastructure. The fully threaded 4" length ensures maximum holding power across the entire fastener, while the external hex drive allows for high-torque installation in confined spaces. These heavy-duty bronze fasteners solve critical engineering challenges in chemical processing, water treatment facilities, and outdoor applications where exposure to moisture and corrosive elements would compromise ordinary steel fasteners.
Specification Summary & Compliance
This 5/16"-18 x 4" hex head screw features Class 2A thread fit per UNC standards, ensuring precise dimensional accuracy and reliable mating. Manufacturing complies with ASME B18.2.1 specifications for hex bolts and screws, guaranteeing consistent quality and performance. The product meets RoHS 3 (2015/863/EU) compliance for restricted hazardous substances and REACH (EC 1907/2006) regulations for chemical safety, making them suitable for regulated industries and environmentally conscious projects.
