S-93516A122 5/16"-18 x 5/8" 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 with 651 Silicon Bronze material, ideal for 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
- Fully threaded UNC coarse pattern allows for faster installation and secure fastening in various materials
- External hex drive design enables easy tightening with standard tools, reducing assembly time
- Class 2A thread fit guarantees consistent, precise threading for smooth engagement and reduced cross-threading risks
- Compliance with RoHS 3 and REACH ensures environmental safety and regulatory acceptance in global markets
Professional Applications & Engineering Value
Engineered for demanding conditions, these 5/16"-18 UNC silicon bronze hex head screws deliver exceptional performance in marine applications, chemical processing, and outdoor structures where corrosion is a critical concern. The 651 silicon bronze composition offers inherent resistance to saltwater and acidic exposures, reducing maintenance costs and extending service life. With a coarse thread design and fully threaded body, they provide rapid installation and strong holding power in soft materials like wood or composites. The external hex drive facilitates high-torque application, making them a reliable choice for industrial hex bolts in assembly lines and equipment manufacturing, ensuring long-term reliability under 70,000 psi tensile strength loads.
Specification Summary & Compliance
This screw features precise Class 2A thread fit with UNC coarse threading (5/16"-18) and dimensions in the inch system, including a 5/8" length. It meets ASME B18.2.1 specifications for dimensional accuracy and manufacturing standards. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to environmental and safety regulations for industrial use.
