S-99894A635 3/4"-10 x 2 1/2" MS90725-189 Mil. Spec. Medium-Strength Steel Hex Head Screws

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 through cadmium plating, extending service life in harsh industrial environments
• Optimized thread engagement with UNC coarse threading and Class 2A fit for faster assembly and secure fastening
• Enhanced durability from Rockwell C25 hardness, maintaining structural integrity under repeated stress
• Maximum grip surface with external hex drive and 1 1/8" head width for secure tool engagement and high torque application
• Full threading coverage along the 2 1/2" length for uniform stress distribution and versatile positioning
• Regulatory compliance assurance meeting MS90725-189 specifications for quality and reliability in critical applications

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, this Grade 5 hex head screw delivers exceptional performance where reliability is paramount. The cadmium plated steel construction provides critical corrosion protection in manufacturing facilities, construction sites, and machinery assembly where exposure to moisture and chemicals is common. The 3/4"-10 UNC coarse thread design ensures rapid installation and superior resistance to vibration loosening, while the external hex drive accommodates high torque requirements without stripping. With full threading along the entire 2 1/2" length, this fastener offers versatile clamping capabilities and uniform stress distribution across the joint, preventing premature failure in structural connections, equipment mounting, and heavy machinery assemblies where consistent performance under extreme loads is essential.

Specification Summary & Compliance

This inch system fastener features precise Class 2A thread fit tolerances and UNC coarse thread specifications ensuring compatibility with standard industrial components. Manufactured to meet MS90725-189 requirements, the screw maintains dimensional accuracy and performance consistency. The Grade 5 classification guarantees mechanical properties including tensile strength and hardness ratings, while the cadmium plating provides surface protection compliant with industrial standards for corrosion resistance. Right-hand threading follows conventional installation practices, making this fastener suitable for integration into existing systems and replacement applications across various industrial sectors.