S-92327A413 1"-8 x 3" 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, ideal for heavy-duty structural connections
• Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in harsh environments
• Optimized installation efficiency through external square drive design that prevents cam-out during high-torque applications
• Reliable thread engagement with UNC coarse threads and Class 2A fit ensuring consistent performance in industrial assemblies
• Enhanced mechanical durability from Rockwell C25 hardness and SAE Grade 5 certification for demanding applications
• Full-length threading versatility across the 3" length provides maximum adjustment flexibility in various material thicknesses
• Standardized compliance assurance meeting ASME B18.2.1 and SAE J429 specifications for quality and interoperability

Professional Applications & Engineering Value

This SAE Grade 5 square head screw delivers critical engineering solutions for industrial applications where vibration resistance and structural integrity are paramount. The 1"-8 UNC coarse threading provides superior pull-out resistance in softer materials and faster installation in production environments. The zinc yellow-chromate plating creates a protective barrier against corrosion in outdoor or chemically aggressive settings, while the external square drive design ensures positive tool engagement during high-torque applications, eliminating stripping concerns. With fully threaded 3" length and Class 2A thread fit, these fasteners maintain consistent clamping force in heavy machinery, construction equipment, and structural steel connections where reliability cannot be compromised.

Specification Summary & Compliance

Manufactured to precise Unified Standard Class 2A thread tolerances with 1"-8 UNC coarse thread specification. Complies with ASME B18.2.1 dimensional standards and SAE J429 material requirements for Grade 5 medium-strength fasteners. Features Rockwell C25 hardness and 120,000 psi tensile strength rating. The zinc yellow-chromate plating meets industry corrosion protection standards while maintaining dimensional accuracy per applicable industrial specifications.