S-92620A404 6-32 x 3/8" 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 rated at 150,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance provided by zinc yellow-chromate plating extends service life in harsh industrial environments.
- High hardness (Rockwell C33) offers excellent wear resistance, maintaining thread integrity through repeated use.
- Coarse UNC threading with Class 2A fit allows for quick installation and secure fastening in a wide range of materials.
- Fully threaded design ensures maximum grip length and uniform stress distribution along the entire fastener.
- External hex drive and hex head provide easy access for standard tools, speeding up assembly and maintenance.
- Compliance with SAE J429 specifications guarantees consistent quality and interchangeability for industrial applications.
Professional Applications & Engineering Value
These Grade 8 hex head screws are engineered to address critical challenges in heavy-duty mechanical and structural assemblies. The steel construction combined with zinc yellow-chromate plating provides robust protection against corrosion, making them ideal for outdoor equipment, automotive components, and machinery exposed to moisture or chemicals. The 6-32 UNC coarse thread design ensures rapid installation and high resistance to vibration loosening, while the fully threaded configuration offers versatile clamping force distribution. With a tensile strength of 150,000 psi and Rockwell C33 hardness, these screws deliver reliable performance in demanding applications such as construction, manufacturing, and transportation, where failure is not an option.
Specification Summary & Compliance
This fastener features precise Class 2A thread fit per UNC standards, ensuring consistent engagement and ease of assembly. It is manufactured to meet SAE J429 specifications for Grade 8 mechanical properties, confirming high tensile strength and hardness requirements. The zinc yellow-chromate finish complies with industry standards for corrosion protection, and the product adheres to relevant regulations for material safety and performance in industrial use.
