S-92620A956 1"-8 x 2 3/4" 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
- Maximum load-bearing capacity with 150,000 psi tensile strength for critical structural applications
- Superior corrosion protection through zinc yellow-chromate plating, extending service life in harsh environments
- Enhanced installation efficiency with coarse UNC threads and Class 2A fit for faster assembly
- Exceptional durability from Grade 8 steel construction and Rockwell C33 hardness
- Reliable torque transmission via external hex drive and substantial 1 1/2" head width
- Full-thread engagement along the 2 3/4" length for maximum holding power
- Regulatory compliance assurance meeting ASME, SAE, RoHS 3, and REACH standards
Professional Applications & Engineering Value
This Grade 8 hex head screw delivers exceptional engineering value for heavy machinery, structural steel connections, and industrial equipment assembly. The zinc yellow-chromate plated steel construction provides critical corrosion resistance in manufacturing facilities, outdoor installations, and high-humidity environments. The 1"-8 UNC coarse thread configuration ensures rapid installation while maintaining vibration resistance, significantly reducing assembly time in production lines. With 150,000 psi tensile strength and Rockwell C33 hardness, this fully threaded fastener prevents joint failure in high-stress applications, making it ideal for construction equipment, automotive frames, and industrial machinery where reliability is paramount. The external hex drive design accommodates standard tools for straightforward maintenance and disassembly.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit tolerances with 1"-8 UNC coarse thread specifications. Complies with ASME B18.2.1 and SAE J429 Grade 8 standards for dimensional accuracy and mechanical properties. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements for environmental safety. Features right-hand thread direction and fully threaded design with 2 3/4" length and 1 1/2" head width for consistent performance across industrial applications.
