S-99894A447 1/2"-13 x 4" MS90725-123 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 high-stress applications
• Superior corrosion resistance through cadmium plating, extending service life in harsh industrial environments
• Optimized thread engagement with partially threaded design and 1-1/4" minimum thread length for secure fastening
• Precise thread compatibility with Class 2A UNC coarse threads ensuring consistent fit and easy assembly
• Enhanced durability with Rockwell C25 hardness providing excellent wear resistance and structural integrity
• Efficient installation through external hex drive design allowing high torque application with standard tools
• Industry compliance assurance meeting MS90725-123 specifications for quality and reliability in demanding applications

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these Grade 5 hex head screws deliver exceptional performance where reliability matters most. The cadmium plated steel construction provides superior corrosion protection in manufacturing, construction, and heavy equipment applications. The 1/2"-13 UNC coarse thread configuration ensures rapid installation and secure fastening in structural assemblies, while the partially threaded design concentrates thread engagement where it's needed most. With 120,000 psi tensile strength and Rockwell C25 hardness, these fasteners withstand vibration, dynamic loads, and harsh environmental conditions, making them ideal for machinery, structural frameworks, and industrial equipment where failure is not an option.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit with 1/2"-13 UNC coarse threading and right-hand thread direction. The fastener maintains dimensional accuracy with 4" length and 3/4" head width, manufactured to meet MS90725-123 specifications. The Grade 5 strength classification ensures consistent mechanical properties, while the cadmium plating provides reliable surface protection. These industrial fasteners are designed for compatibility with standard UNC thread systems and are suitable for applications requiring high tensile strength and corrosion resistance in demanding industrial environments.