S-92620A591 5/16"-18 x 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
- Maximum load-bearing capacity with 150,000 psi tensile strength for critical structural applications
- Superior corrosion resistance through zinc yellow-chromate plating in harsh industrial environments
- Exceptional durability with Rockwell C33 hardness to withstand high-stress conditions
- Reliable thread engagement with Class 2A thread fit ensuring precise assembly and vibration resistance
- Optimized for heavy-duty applications through Grade 8 certification and full threading
- Easy installation and removal with standard external hex drive and coarse UNC threading
- Industry-standard compliance meeting ASME B18.2.1 and SAE J429 specifications
Professional Applications & Engineering Value
These Grade 8 hex head screws deliver exceptional engineering value in demanding industrial environments where failure is not an option. The steel construction combined with zinc yellow-chromate plating provides superior protection against corrosion in manufacturing facilities, outdoor equipment, and machinery exposed to harsh conditions. The coarse UNC threading ensures rapid assembly and disassembly while maintaining secure fastening in high-vibration applications. With full threading along the entire 2-inch length, these fasteners distribute stress evenly across the engagement area, preventing localized failure points. The external hex drive design allows for high torque application, making them ideal for heavy machinery, structural steel connections, and automotive assemblies where reliability and strength are paramount.
Specification Summary & Compliance
This 5/16"-18 x 2" hex head screw features Class 2A thread fit tolerance for precise engagement and meets ASME B18.2.1 and SAE J429 manufacturing specifications. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. Manufactured to Grade 8 standards with UNC coarse threading and inch system measurements for compatibility with North American industrial equipment and specifications.
