S-99894A364 3/8"-16 x 3" MS90725-70 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 with 120,000 psi rating ensures reliable performance in high-stress applications
- Superior corrosion resistance through cadmium plating extends service life in harsh environments
- Precise Class 2A thread fit guarantees secure fastening and easy assembly in industrial settings
- Grade 5 steel construction with Rockwell C25 hardness provides optimal durability and wear resistance
- Coarse UNC threading offers faster installation and reduced cross-threading risks
- External hex drive design enables high-torque application with standard tools
- Comprehensive compliance with MS90725-70, RoHS 3, and REACH ensures environmental and regulatory safety
Professional Applications & Engineering Value
These Grade 5 steel hex head screws deliver critical engineering solutions where vibration resistance and structural integrity are paramount. The cadmium plated finish provides essential protection against corrosion in industrial environments, while the 3/8"-16 UNC coarse threading ensures rapid assembly in manufacturing and construction applications. With partial threading and Class 2A thread fit, these fasteners maintain precise clamping force in automotive frames, heavy machinery, and structural steel connections. The combination of 120,000 psi tensile strength and external hex drive makes them ideal for high-torque applications requiring repeated disassembly and reassembly without performance degradation.
Specification Summary & Compliance
This 3/8"-16 UNC hex head screw features precise Class 2A thread fit with coarse threading and partial threading up to 1" minimum thread length. Manufactured to meet MS90725-70 specifications with full compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards. The fastener maintains dimensional accuracy per UNC thread standards and delivers consistent performance across industrial applications requiring Grade 5 strength classification.
