S-99894A418 1/2"-13 x 1 3/4" MS90725-114 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
- Superior load-bearing capability with 120,000 psi tensile strength, ideal for heavy-duty applications requiring reliable, long-term fastening.
- Enhanced corrosion resistance from cadmium plating, extending service life in demanding industrial environments.
- Precise and secure fit ensured by Class 2A thread fit, reducing the risk of cross-threading and assembly errors.
- High-grade material strength from Grade 5 steel and Rockwell C25 hardness, providing excellent durability and resistance to wear.
- Easy installation and removal with a standard 3/4" external hex head, compatible with common tools for efficient maintenance.
- Versatile coarse UNC threading offers quick assembly and strong holding power in a wide range of materials.
- Full compliance with industry standards including MS90725-114, RoHS 3, and REACH, ensuring safety and regulatory adherence.
Professional Applications & Engineering Value
This Grade 5 steel hex head screw is engineered to address critical challenges in industrial settings, such as vibration loosening and material fatigue. The fully threaded design with UNC coarse thread ensures maximum grip and load distribution, making it suitable for heavy machinery, structural frameworks, and automotive assemblies. The cadmium-plated finish provides a protective barrier against rust and corrosion, essential for outdoor or high-moisture environments. With its external hex drive and precise Class 2A thread fit, it enables quick, secure installations, reducing downtime and maintenance costs in demanding applications like construction and manufacturing.
Specification Summary & Compliance
This fastener adheres to Class 2A thread fit and UNC thread standards, ensuring dimensional accuracy and interchangeability. It meets MS90725-114 specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming its suitability for use in regulated industries without hazardous substances.
