S-92620A593 5/16"-18 x 2 1/2" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws
High-Strength Grade 8 Steel 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 load-bearing capacity with 150,000 psi tensile strength for reliable performance in high-stress applications
- Superior corrosion resistance through zinc yellow-chromate plating that withstands harsh industrial environments
- Optimized thread engagement with UNC coarse threading and Class 2A fit for faster assembly and secure fastening
- Maximum hardness durability with Rockwell C33 rating ensuring long-term performance under repeated stress
- Full-length threading provides consistent grip strength along the entire 2½" length for versatile application use
- Heavy-duty hex head design allows for high-torque installation with standard tools without stripping
- Regulatory compliance assurance meeting ASME B18.2.1, SAE J429 standards plus RoHS 3 and REACH environmental directives
Professional Applications & Engineering Value
These Grade 8 hex head screws deliver critical engineering solutions where high tensile strength and corrosion resistance are paramount. The zinc yellow-chromate plating provides exceptional protection against oxidation and chemical exposure in demanding environments like construction equipment, automotive assemblies, and heavy machinery. The UNC coarse threading with Class 2A fit ensures rapid installation while maintaining precise tolerances, reducing assembly time in production lines. With 150,000 psi tensile strength and Rockwell C33 hardness, these fully threaded screws prevent joint failure in vibration-intensive applications, making them ideal for structural connections, engine components, and industrial frameworks where reliability cannot be compromised.
Specification Summary & Compliance
This 5/16"-18 hex head screw features precise Class 2A thread fit tolerances with UNC coarse threading and right-hand thread direction. Manufacturing complies with ASME B18.2.1 and SAE J429 Grade 8 specifications, ensuring dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming adherence to the latest industrial safety and sustainability standards.
