S-92865A334 7/16"-20 x 5" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional Load-Bearing Capacity - Grade 5 classification and 120,000 psi tensile strength ensure reliable performance in high-stress applications
• Superior Corrosion Resistance - Zinc plating provides durable protection against rust and environmental degradation
• Precision Thread Engagement - Class 2A thread fit with UNF fine threading offers secure fastening and vibration resistance
• Optimal Mechanical Strength - Rockwell C25 hardness maintains structural integrity under heavy loads and repeated use
• Enhanced Installation Efficiency - External hex drive design allows for quick assembly with standard tools and high torque application
• Full Thread Coverage - 5" fully threaded length ensures maximum grip and distribution of clamping force
• Industry Standard Compliance - Meets ASME B18.2.1 specifications for guaranteed dimensional accuracy and performance

Professional Applications & Engineering Value

This Grade 5 hex head screw delivers critical engineering solutions for heavy-duty industrial applications where failure is not an option. The 7/16"-20 UNF fine threading provides superior resistance to vibration loosening compared to coarse threads, making it ideal for machinery, equipment manufacturing, and structural assemblies. The zinc plated finish extends service life in moderately corrosive environments without compromising the 120,000 psi tensile strength. With Rockwell C25 hardness, these steel fasteners maintain their mechanical properties under sustained load conditions, while the external hex drive enables efficient installation in confined spaces. The 5-inch fully threaded design ensures maximum thread engagement for critical connections in construction, automotive, and industrial maintenance applications.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit tolerance with 7/16"-20 UNF fine threading and right-hand thread direction. Manufactured to ASME B18.2.1 specifications where identical to SAE J429 standards, ensuring dimensional accuracy and performance reliability. The fastener is fully RoHS 3 (2015/863/EU) Compliant for environmental safety and meets all mechanical requirements for Grade 5 classification including 120,000 psi tensile strength and Rockwell C25 hardness.