S-92620A638 3/8"-16 x 3 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 high-stress applications.
- Superior corrosion resistance due to zinc yellow-chromate plating, extending service life in harsh environments.
- High hardness rating of Rockwell C33 ensures excellent wear resistance and durability under repeated use.
- Easy installation and removal with external hex drive and coarse UNC threads for quick assembly in various materials.
- Precise thread fit with Class 2A tolerance ensuring consistent engagement and reduced risk of cross-threading.
- Full threading along the 3-1/2" length provides maximum grip and adjustability in deep or variable material thicknesses.
- Compliance with industry standards including ASME B18.2.1 and SAE J429, guaranteeing quality and interoperability.
Professional Applications & Engineering Value
These Grade 8 hex head screws are engineered to address critical challenges in heavy machinery, construction, and automotive assemblies where failure is not an option. The steel material combined with zinc yellow-chromate plating offers robust protection against rust and chemical exposure, ideal for outdoor or corrosive settings. The coarse UNC 3/8"-16 thread and external hex drive enable fast, secure fastening in wood, metal, and composite materials, reducing installation time while maintaining 150,000 PSI tensile strength. This makes them a top choice for structural frames, equipment mounts, and other high-strength fastener needs, ensuring long-term reliability and safety in demanding industrial environments.
Specification Summary & Compliance
This product features a 3/8"-16 UNC coarse thread with Class 2A thread fit for precise dimensional accuracy. It is manufactured in accordance with ASME B18.2.1 and SAE J429 specifications, ensuring consistent quality and performance. Additionally, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and environmentally responsible industrial use.
