S-92620A635 3/8"-16 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 load-bearing capability with 150,000 psi tensile strength and Grade 8 classification, ensuring reliable performance in high-stress applications.
- Superior corrosion resistance from zinc yellow-chromate plating, extending service life in harsh industrial or outdoor environments.
- Precise and secure fastening with UNC coarse threads and Class 2A fit, reducing cross-threading risks and enabling quick assembly.
- High durability and wear resistance due to Rockwell C33 hardness, maintaining integrity under repeated use and vibration.
- Easy installation and removal with external hex drive and 9/16" head width, allowing standard wrench access in confined spaces.
- Full threading along the 2 3/4" length provides consistent grip and adjustability across the entire fastener.
- Compliance with ASME B18.2.1 and SAE J429 standards guarantees consistent quality and interchangeability for industrial projects.
Professional Applications & Engineering Value
This Grade 8 hex head screw is engineered to address critical challenges in heavy machinery, construction, and automotive assemblies where high tensile strength and corrosion resistance are paramount. The zinc yellow-chromate plated steel construction combats rust and chemical exposure, while the UNC coarse thread and Class 2A fit ensure rapid, secure fastening without stripping. Its fully threaded design and external hex drive simplify maintenance in structural frameworks, equipment mounts, and load-bearing joints, reducing downtime and enhancing operational safety. Ideal for demanding environments, it meets rigorous ASME B18.2.1 and SAE J429 specifications, providing reliability for engineers and procurement teams.
Specification Summary & Compliance
This fastener adheres to Class 2A thread fit and UNC coarse thread standards with a 3/8"-16 size and right-hand direction. Manufactured to ASME B18.2.1 and SAE J429 specifications, it ensures dimensional accuracy and performance consistency. The zinc yellow-chromate finish supports RoHS and REACH compliance for environmental safety.
