S-99894A340 3/8"-16 x 2" MS90725-66 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 load-bearing capacity with 120,000 psi tensile strength for reliable performance in demanding applications
- Superior corrosion resistance provided by cadmium plating, extending service life in harsh industrial environments
- Precise thread engagement with Class 2A thread fit ensuring consistent fastening and vibration resistance
- Optimized torque transmission through external hex drive design for efficient installation with standard tools
- Enhanced durability from Rockwell C25 hardness maintaining structural integrity under repeated stress
- Versatile partial threading allowing both secure clamping and adjustable positioning capabilities
- Regulatory compliance assurance meeting MS90725-66 specifications and environmental standards including RoHS 3 & REACH
Professional Applications & Engineering Value
This Grade 5 steel hex head screw delivers critical engineering solutions for industrial assembly challenges. The 3/8"-16 UNC coarse thread configuration provides excellent engagement in various materials while resisting vibration-induced loosening. The cadmium plated finish creates a protective barrier against corrosion, making it ideal for outdoor equipment, machinery frames, and structural applications where environmental exposure is a concern. With partial threading and external hex drive, installers benefit from controlled clamping force and straightforward installation using common wrench tools. These industrial hex screws are engineered to maintain integrity in heavy-duty applications where 120,000 psi tensile strength and consistent performance are non-negotiable requirements.
Specification Summary & Compliance
This fastener features Class 2A thread fit per UNC standards with 3/8"-16 thread size and 2" length. Manufacturing complies with MS90725-66 specifications and meets environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance. The Grade 5 strength classification ensures consistent mechanical properties with Rockwell C25 hardness and verified 120,000 psi tensile strength.
