S-92562A257 1/4"-20 x 1/2" MS16997-58, NAS1352-4-8P Mil. Spec. Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 160,000 psi ensures reliable performance under high-stress conditions, reducing the risk of fastener failure in demanding applications.
• Superior corrosion resistance from cadmium plating extends service life and maintains integrity in harsh industrial environments.
• Precise Class 3A thread fit provides excellent engagement and vibration resistance, minimizing loosening in dynamic assemblies.
• High hardness rating (Rockwell C39) offers excellent wear resistance and durability, maintaining thread integrity through repeated use.
• Hex socket drive design allows for high torque application and secure installation in confined spaces where wrench clearance is limited.
• Coarse UNRC threading enables quick assembly and disassembly while providing strong holding power in various materials.
• Full threading along the entire 1/2" length ensures maximum grip and adjustment flexibility in your assembly applications.

Professional Applications & Engineering Value

This cadmium-plated alloy steel socket head cap screw delivers critical performance advantages for industrial applications where reliable fastening solutions are paramount. The combination of 160,000 psi tensile strength and Rockwell C39 hardness ensures these socket head cap screws withstand extreme mechanical stresses without deformation or failure. The Class 3A thread fit with coarse UNRC threading provides superior vibration resistance in machinery, automotive, and aerospace applications, while the cadmium plating offers essential corrosion protection in challenging environments. The hex drive socket head design enables high-torque installation in space-constrained applications, making these industrial fasteners ideal for precision equipment, heavy machinery, and structural assemblies requiring dependable, high-strength connections.

Specification Summary & Compliance

This 1/4"-20 x 1/2" socket head cap screw features precision Class 3A thread fit with UNRC coarse thread specifications and right-hand thread direction. Manufactured from cadmium-plated alloy steel with full threading along the entire length. The fastener complies with MS16997-58 specifications (NAS1352-4-8P) and meets industry standards for dimensional accuracy and performance requirements in inch system measurements.