S-99894A304 3/8"-16 x 1 1/4" MS90725-62 Mil. Spec. Medium-Strength Steel Hex Head Screws
Mil. Spec. Medium-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 120,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Corrosion-resistant cadmium plating extends service life in harsh environments, minimizing maintenance and replacement costs.
- Grade 5 steel construction with Rockwell C25 hardness provides superior durability and resistance to wear and deformation.
- Fully threaded UNC coarse pattern allows for faster installation and secure holding power in a wide range of materials.
- Class 2A thread fit ensures consistent, precise engagement with mating parts, improving assembly efficiency and reliability.
- External hex drive design enables easy installation and removal with standard tools, reducing labor time and effort.
- Compliance with MS90725-62, RoHS 3, and REACH guarantees adherence to industry standards for safety and environmental responsibility.
Professional Applications & Engineering Value
This Grade 5 steel hex head screw is engineered to address critical challenges in industrial and construction settings, where high tensile strength and corrosion resistance are paramount. The cadmium plating provides a robust barrier against oxidation and chemical exposure, making it ideal for outdoor machinery, automotive assemblies, and structural frameworks. Its UNC coarse thread and fully threaded design ensure quick, secure fastening in metals and composites, reducing vibration loosening and enhancing joint integrity. By combining 120,000 psi tensile strength with Rockwell C25 hardness, it delivers long-term reliability in heavy-duty applications, from equipment manufacturing to infrastructure projects, while meeting strict RoHS and REACH compliance for global supply chains.
Specification Summary & Compliance
This fastener features a 3/8"-16 UNC thread with Class 2A fit for precise dimensional accuracy, ensuring compatibility with standard nuts and tapped holes. It adheres to MS90725-62 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and regulated industrial use.
