S-92620A951 1"-8 x 1 1/2" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws
High-Strength Grade 8 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
- Exceptional load-bearing capacity with 150,000 psi tensile strength for reliable performance in demanding applications
- Superior corrosion resistance through zinc yellow-chromate plating that extends service life in harsh environments
- Optimized thread engagement with UNC coarse threading and Class 2A fit for faster assembly and reduced cross-threading risk
- Maximum torque transmission via the external hex drive design that prevents tool slippage during installation
- Enhanced durability from Rockwell C33 hardened steel construction that maintains integrity under heavy loads
- Full-thread coverage along the 1½" length for consistent clamping force distribution across the entire fastener
- Industry-standard compliance ensuring interchangeability and reliability across industrial equipment and machinery
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 superior protection against oxidation in industrial environments, while the UNC coarse threads with Class 2A fit enable rapid assembly in structural steel, heavy machinery, and automotive applications. The external hex drive design allows for high-torque installation without stripping, and the Rockwell C33 hardness ensures the fastener maintains its structural integrity under extreme vibration and load conditions. These fully threaded fasteners distribute clamping force evenly, making them ideal for critical joints in construction equipment, industrial presses, and transportation systems where failure is not an option.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit and UNC coarse threading (1"-8 thread size). These hex head screws comply with ASME B18.2.1 and SAE J429 Grade 8 specifications, ensuring dimensional accuracy and mechanical properties. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations guarantees safe use across global industrial markets.
