S-92327A283 3/8"-16 x 1 1/2" ASME B18.2.1, SAE J429 Square Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 120,000 psi provides reliable load-bearing capacity for medium to heavy-duty applications
• Superior corrosion resistance with zinc yellow-chromate plating extends service life in demanding environments
• Precision UNC coarse threading ensures quick installation and secure fastening in various materials
• Rockwell C25 hardness rating maintains structural integrity under repeated stress and vibration
• External square drive design delivers maximum torque transfer and prevents tool slippage during installation
• Full threading along the entire 1-1/2" length provides consistent grip strength throughout the fastener
• Industry-standard compliance with ASME B18.2.1 and SAE J429 ensures consistent quality and interchangeability

Professional Applications & Engineering Value

These Grade 5 square head screws deliver critical engineering solutions for industrial applications where medium strength fasteners must withstand substantial mechanical stress. The combination of SAE Grade 5 steel construction and zinc yellow-chromate plating addresses common industrial challenges including corrosion in manufacturing environments, vibration-induced loosening in machinery, and the need for reliable torque transmission. The 3/8"-16 UNC coarse thread configuration provides excellent engagement in both metal and wood substrates, while the external square drive enables high-torque installation without cam-out issues. These fully threaded square head screws are particularly valuable in construction equipment, agricultural machinery, and industrial assembly where medium strength rating meets the demands of structural connections without the cost premium of higher-grade alternatives.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Unified Standard Class 2A thread fit for consistent performance across applications. The fastener meets ASME B18.2.1 dimensional specifications and SAE J429 material and mechanical property requirements for Grade 5 fasteners. Features 3/8"-16 UNC coarse threads with right-hand orientation and full threading along the entire 1-1/2" length. The zinc yellow-chromate plating provides corrosion protection while maintaining the Rockwell C25 hardness and 120,000 psi tensile strength characteristics required for industrial applications.