S-99086A312 5/16"-18 x 4 ft. ASTM A193 Threaded Rods

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 125,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in harsh environments
• Precise thread engagement with Class 2A thread fit ensuring consistent mating with compatible nuts and components
• Optimized for heavy-duty use through ASTM Grade B7 material specification and Rockwell C35 hardness rating
• Industry-standard compatibility with UNC coarse threading (5/16"-18) for broad application across industrial systems
• Full-length threading enables flexible positioning and adjustment along the entire 4-foot rod length
• Regulatory compliance assurance meeting ASTM A193, RoHS 3, and REACH standards for quality and environmental safety

Professional Applications & Engineering Value

This high-strength threaded rod addresses critical engineering challenges in structural and mechanical systems where vibration resistance and long-term reliability are paramount. The ASTM Grade B7 zinc yellow-chromate plated steel construction provides exceptional corrosion protection while maintaining 125,000 psi tensile strength under sustained loads. The fully threaded UNC coarse thread design ensures maximum engagement surface area for secure fastening in heavy machinery, construction frameworks, and industrial equipment. Engineers specify this 4-foot threaded rod for applications requiring ASTM A193 compliance where failure is not an option, including pressure vessel assemblies, structural bracing systems, and high-temperature industrial environments. The combination of material properties and precise Class 2A thread fit delivers predictable performance across thousands of duty cycles.

Specification Summary & Compliance

This threaded rod maintains Class 2A thread fit tolerance per industry standards with UNC 5/16"-18 coarse threading configuration. Manufacturing follows ASTM A193 specification for high-temperature service with material certification to ASTM Grade B7. The product meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations regarding chemical safety. Mechanical properties include verified 125,000 psi minimum tensile strength and Rockwell C35 hardness testing to ensure consistent performance across production batches.