S-93516A215 5/8"-11 x 5 1/2" 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
- Exceptional corrosion resistance in harsh marine and industrial environments due to 651 Silicon Bronze material composition.
- High tensile strength of 70,000 PSI ensures reliable, long-lasting fastening for demanding structural applications.
- Superior durability with a Rockwell B70 hardness, providing excellent wear resistance and reduced thread galling.
- Easy installation and removal with a standard external hex drive and 15/16" head width for common wrench access.
- Secure coarse UNC threading with Class 2A fit offers quick assembly and consistent clamping force in various materials.
- Full threading along the 5 1/2" length allows for maximum adjustability and grip in deep or variable thickness applications.
- Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees product quality, safety, and environmental responsibility.
Professional Applications & Engineering Value
This 5/8"-11 UNC 651 Silicon Bronze hex head screw is engineered to solve critical challenges in corrosive and high-strength environments. Its silicon bronze material provides innate resistance to saltwater corrosion, making it ideal for marine applications like boat building, docks, and offshore structures. The coarse UNC thread and Class 2A fit ensure rapid, reliable fastening in wood, soft metals, and composite materials, reducing installation time and preventing cross-threading. With a 70,000 PSI tensile strength and Rockwell B70 hardness, it withstands heavy loads and vibrational stresses in industrial settings such as chemical processing, water treatment, and construction. The external hex drive and full threading enable precise torque application and versatile use in varied material thicknesses, delivering long-term performance and reduced maintenance costs.
Specification Summary & Compliance
This screw features a 5/8"-11 UNC coarse thread with Class 2A tolerance for precise fit and consistent performance. It is manufactured in compliance with ASME B18.2.1 specifications for dimensional accuracy and mechanical properties. The product is also RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it meets stringent environmental and safety standards for hazardous substances.
