S-99894A352 3/8"-16 x 2 1/2" MS90725-68 Mil. Spec. Medium-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• High tensile strength of 120,000 psi ensures reliable performance in demanding applications, reducing the risk of fastener failure.
• Cadmium plating provides excellent corrosion resistance, extending service life in harsh industrial environments.
• Grade 5 classification and Rockwell C25 hardness offer a superior balance of strength and durability for repeated use.
• UNC coarse thread with Class 2A fit allows for faster assembly and better vibration resistance compared to fine threads.
• Partially threaded design enables precise clamping force distribution, ideal for securing materials of varying thickness.
• External hex drive and hex head facilitate easy installation and removal with standard tools, improving workflow efficiency.
• Compliance with MS90725-68 and RoHS 3 guarantees adherence to industry standards and environmental safety regulations.

Professional Applications & Engineering Value

This Grade 5 hex head screw is engineered to address common industrial challenges such as vibration loosening and material fatigue. Its cadmium plated steel construction resists corrosion, making it suitable for outdoor machinery, automotive assemblies, and structural frameworks where exposure to elements is a concern. The 3/8"-16 UNC coarse thread ensures quick, secure fastening in metals and composites, while the partially threaded shank provides optimal grip without compromising joint integrity. With a 2 1/2" length and external hex drive, it offers versatility for heavy-duty applications requiring high clamp loads and easy maintenance access, reducing downtime and enhancing operational reliability.

Specification Summary & Compliance

This fastener adheres to precise dimensional standards, including a Class 2A thread fit for consistent engagement and UNC coarse threading per industry norms. It meets MS90725-68 specifications for material and performance, ensuring compatibility with military and industrial requirements. Additionally, it is RoHS 3 (2015/863/EU) Compliant, confirming the absence of hazardous substances for safe use in regulated environments. The combination of Grade 5 strength, Rockwell C25 hardness, and 120,000 psi tensile strength underscores its reliability for critical fastening tasks.