S-95362A105 1/4"-20 x 1" ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-8 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 with zinc yellow-chromate plating, extending service life in harsh industrial environments.
- Heavy-duty Grade 8 classification and Rockwell C33 hardness provide outstanding durability and resistance to wear.
- Fully threaded UNC coarse design offers faster installation and stronger holding power in various materials.
- Precise Class 2A thread fit ensures smooth assembly and consistent performance with standard nuts and tapped holes.
- External hex drive and hex head allow for high-torque application with common tools, improving installation efficiency.
- Compliance with major standards including ASME B18.2.1 guarantees interchangeability and reliability in regulated industries.
Professional Applications & Engineering Value
This Grade 8 hex head screw is engineered to address critical challenges in heavy machinery, construction, and automotive assemblies where vibration and dynamic loads are common. The steel material combined with zinc yellow-chromate plating provides a robust barrier against rust and chemical exposure, making it ideal for outdoor or corrosive environments. The 1/4"-20 UNC coarse thread and fully threaded design enhance grip strength and distribute stress evenly, preventing loosening under extreme conditions. By meeting ASME B18.2.1 and other key standards, it ensures compatibility and safety in structural applications, reducing downtime and maintenance costs for industrial operators.
Specification Summary & Compliance
This fastener features a 1/4"-20 UNC coarse thread with Class 2A fit for precise dimensional accuracy, ensuring reliable engagement. It conforms to specifications including ASME B18.2.1, SAE J429, ASTM A354BD, and MS90728-8, and is REACH (EC 1907/2006) compliant, supporting environmental and safety regulations in global supply chains.
