S-92965A587 5/16"-18 x 1 1/2" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws
Medium-Strength Grade 5 Steel 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 black oxide finish for extended service life in demanding environments
- High tensile strength of 120,000 psi ensures reliable performance under heavy loads and vibration
- Grade 5 steel construction with Rockwell C25 hardness provides excellent durability and wear resistance
- UNC coarse threading with Class 2A fit enables faster assembly and superior resistance to loosening
- External hex drive design allows for high torque application and secure fastening with standard tools
- Partial threading provides optimal grip strength while reducing material stress concentrations
- Industry standard compliance ensures consistent quality and interchangeability across applications
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these Grade 5 hex head screws deliver exceptional performance where reliability is critical. The black oxide finish provides superior corrosion protection, making them ideal for automotive assemblies, machinery construction, and structural frameworks exposed to harsh conditions. The UNC coarse thread pattern combined with Class 2A thread fit ensures rapid installation and vibration resistance, reducing maintenance downtime. With 120,000 psi tensile strength and Rockwell C25 hardness, these screws maintain integrity under extreme mechanical stress, while the partial threading design prevents joint failure by optimizing clamp load distribution. Perfect for applications requiring ASME B18.2.1 compliance and consistent performance in demanding environments.
Specification Summary & Compliance
This 5/16"-18 hex head screw features precise Class 2A thread fit tolerances and UNC coarse threading standards. Manufactured to meet ASME B18.2.1 specifications where identified under SAE J429 standards, ensuring dimensional accuracy and mechanical properties. The product is fully RoHS 3 (2015/863/EU) compliant for environmental safety, with material composition and manufacturing processes adhering to international regulatory requirements for industrial fasteners.
