S-99894A655 3/4"-10 x 3 1/2" MS90725-193 Mil. Spec. Medium-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion protection with cadmium plating that extends service life in demanding industrial environments
• Exceptional load-bearing capacity with 120,000 psi tensile strength for heavy-duty applications requiring reliable fastening
• Optimized thread engagement through Class 2A thread fit ensuring consistent assembly and vibration resistance
• Enhanced durability with Rockwell C25 hardness providing excellent resistance to wear and deformation
• Quick installation with external hex drive design allowing for efficient torque application and secure fastening
• Versatile partial threading enabling precise clamping force distribution across connected components
• Industry-standard compliance meeting MS90725-193 specifications for guaranteed quality and interoperability

Professional Applications & Engineering Value

These Grade 5 hex head screws deliver critical engineering solutions for industrial applications where vibration resistance and structural integrity are paramount. The 3/4"-10 UNC coarse thread configuration provides excellent holding power in softer materials and faster installation times, while the cadmium plated finish offers reliable protection against corrosion in challenging environments. The partially threaded design ensures optimal stress distribution, preventing joint loosening in heavy machinery, construction equipment, and structural assemblies. With 120,000 psi tensile strength and Rockwell C25 hardness, these external hex drive fasteners maintain clamping force under extreme loads, making them ideal for automotive, manufacturing, and infrastructure applications requiring durable fastening solutions.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit tolerances with 3/4"-10 UNC coarse threading and right-hand thread direction. Manufacturing complies with MS90725-193 specifications, ensuring consistent quality and dimensional accuracy. The fastener maintains 3 1/2" length with 1 3/4" minimum thread length and meets industry standards for Grade 5 strength classification. The cadmium plated steel construction provides environmental protection while maintaining mechanical properties required for industrial applications.