S-92620A262 1"-14 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
- Exceptional tensile strength of 150,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance from zinc yellow-chromate plating extends service life in harsh industrial environments.
- High hardness rating (Rockwell C33) provides excellent wear resistance and maintains thread integrity under heavy loads.
- Extra fine 1"-14 thread delivers enhanced grip and vibration resistance in precision assemblies.
- Partially threaded design allows for precise clamping force control and secure fastening in specific joint configurations.
- External hex drive enables easy installation and high torque application with standard tools.
- Class 2A thread fit ensures consistent, reliable engagement with mating components while maintaining assembly efficiency.
Professional Applications & Engineering Value
Engineered for demanding industrial applications, this Grade 8 hex head screw combines high-strength steel construction with extra fine threading to solve critical fastening challenges. The 1"-14 extra fine thread provides superior resistance to vibration loosening in machinery, automotive, and structural applications where precise clamping is essential. The zinc yellow-chromate plating offers robust protection against corrosion in outdoor or chemically aggressive environments, significantly extending maintenance intervals. With its partially threaded configuration, this fastener allows engineers to precisely control clamping force distribution, making it ideal for heavy equipment, construction machinery, and industrial assemblies requiring reliable, long-term performance under extreme conditions.
Specification Summary & Compliance
This Grade 8 hex head screw features Class 2A thread fit for consistent dimensional accuracy and UNS thread type with right-hand direction. Manufacturing complies with ASME B18.2.1 and SAE J429 specifications, ensuring interchangeability and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest industry standards for hazardous substance restrictions.
