S-92327A365 3/4"-10 x 4" ASME B18.2.1, SAE J429 Square Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 120,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance through zinc yellow-chromate plating, extending service life in harsh industrial environments
• Optimized torque transmission with external square drive design preventing cam-out and ensuring secure installation
• Precision thread engagement with Unified Standard Class 2A fit for consistent fastening and vibration resistance
• Enhanced durability from Rockwell C25 hardness providing excellent wear resistance and structural integrity
• Wide compatibility with 3/4"-10 UNC coarse threads enabling quick assembly and disassembly in various materials
• Industry compliance assurance meeting ASME B18.2.1 and SAE J429 standards for quality and reliability

Professional Applications & Engineering Value

This Grade 5 square head screw delivers critical engineering solutions where medium strength fasteners must withstand substantial mechanical stress. The fully threaded 3/4"-10 UNC design provides maximum grip length for structural connections in heavy machinery, construction equipment, and industrial assemblies. The zinc yellow-chromate plating creates a protective barrier against oxidation and chemical exposure, significantly extending maintenance intervals in corrosive environments. With its external square drive and coarse threading, this fastener enables rapid installation in steel frameworks, wood structures, and composite materials while maintaining 120,000 psi tensile strength under dynamic loads. Engineers specify these square head screws for applications requiring dependable right-hand thread fastening that complies with recognized industrial standards.

Specification Summary & Compliance

This 4" length square head screw features precision Class 2A thread fit according to Unified Standard specifications, ensuring consistent engagement across mating components. The 3/4"-10 UNC coarse thread configuration provides optimal performance in various materials while the SAE Grade 5 classification guarantees mechanical properties including Rockwell C25 hardness. Manufacturing complies with ASME B18.2.1 dimensional standards and SAE J429 material specifications, delivering reliable performance for industrial applications requiring verified quality and dimensional accuracy.