S-95362A411 1/2"-13 x 1 1/2" ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-113 Mil. Spec. High-Strength Steel Hex Head Screws
Mil. Spec. High-Strength 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 (Rockwell C33) provides excellent wear resistance and durability under repetitive loads.
- Full UNC coarse threading allows for faster installation and better grip in a wide range of materials.
- External hex drive design offers easy installation and removal with standard tools, improving assembly efficiency.
- Compliance with major standards (ASME B18.2.1, SAE J429, ASTM A354BD) guarantees consistent quality and interchangeability.
- Class 2A thread fit ensures smooth assembly and reliable engagement without binding.
Professional Applications & Engineering Value
This Grade 8 hex head screw is engineered for heavy-duty industrial applications where reliability is critical. The steel construction combined with zinc yellow-chromate plating provides robust protection against corrosion, making it ideal for outdoor machinery, construction equipment, and automotive assemblies. The fully threaded UNC coarse thread design ensures maximum holding power and vibration resistance, addressing common issues like loosening under dynamic loads. With its external hex drive and precise Class 2A thread fit, it simplifies maintenance and reduces downtime in demanding environments such as manufacturing plants and infrastructure projects.
Specification Summary & Compliance
This fastener features a 1/2"-13 UNC coarse thread with Class 2A tolerance for precise fit. It meets ASME B18.2.1, SAE J429, and ASTM A354BD specifications, ensuring high-strength performance. The product is REACH (EC 1907/2006) compliant and adheres to MS90728-113 standards, confirming its suitability for regulated industrial use.
