S-92865A885 7/8"-9 x 3" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 120,000 PSI tensile strength, ideal for heavy-duty structural connections
• Superior corrosion resistance through zinc plating, extending service life in harsh environments
• Optimized assembly efficiency with UNC coarse threading for faster installation and reduced cross-threading risks
• Reliable mechanical performance backed by Grade 5 certification and Rockwell C25 hardness for consistent durability
• Precision thread engagement with Class 2A fit ensuring secure fastening and vibration resistance
• Enhanced torque transmission via external hex drive design for high-tension applications
• Full-threaded design providing maximum grip length and uniform stress distribution

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these Grade 5 hex head screws combine high-strength steel construction with zinc plating to combat corrosion in construction, machinery assembly, and structural frameworks. The UNC coarse thread profile ensures rapid installation while maintaining vibration-resistant clamping force, critical for equipment subjected to dynamic loads. With full threading along the 3" length, these external hex drive fasteners distribute shear forces evenly, preventing joint failure in high-stress environments. Their 120,000 PSI tensile strength makes them suitable for replacing inferior fasteners in critical load-bearing assemblies.

Specification Summary & Compliance

Manufactured to ASME B18.2.1 and SAE J429 specifications with Class 2A thread fit tolerances. Compliant with RoHS 3 (2015/863/EU) environmental regulations. Features 7/8"-9 UNC coarse threads with right-hand orientation and fully threaded 3" length configuration.