S-93516A171 1/2"-13 x 7/8" 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 in harsh environments thanks to 651 Silicon Bronze material composition
- Exceptional mechanical strength with 70,000 psi tensile strength for heavy-duty load-bearing applications
- Optimized thread engagement with coarse UNC threading and Class 2A fit ensuring reliable fastening
- Enhanced durability with Rockwell B70 hardness providing excellent wear resistance
- Full-threaded design along the 7/8" length for maximum grip and uniform stress distribution
- Industry-standard compliance with ASME B18.2.1 specifications for guaranteed dimensional accuracy
- Environmentally responsible manufacturing with full RoHS 3 and REACH compliance
Professional Applications & Engineering Value
These 651 Silicon Bronze hex head screws deliver critical performance advantages in demanding industrial settings where corrosion resistance and structural integrity are paramount. The silicon bronze alloy provides exceptional protection against saltwater, chemical exposure, and atmospheric corrosion, making these UNC threaded fasteners ideal for marine equipment, chemical processing plants, and offshore structures. The combination of 70,000 psi tensile strength and Rockwell B70 hardness ensures reliable performance under sustained mechanical stress, while the coarse thread pattern and Class 2A thread fit facilitate quick installation and secure fastening in various materials. The external hex drive design allows for high-torque application with standard tools, streamlining assembly processes in industrial maintenance and construction projects.
Specification Summary & Compliance
Manufactured to precise inch system measurements with 1/2"-13 UNC coarse threads and Class 2A thread fit tolerance for consistent performance. These fully threaded hex head screws comply with ASME B18.2.1 dimensional standards and meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements, ensuring they're suitable for regulated industrial applications worldwide.
