S-92965A542 1/4"-20 x 1" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black oxide finish for extended service life in demanding environments
• Exceptional tensile strength of 120,000 psi ensures reliable performance in high-stress applications
• Precision Class 2A thread fit provides consistent engagement and reduces cross-threading risks
• Grade 5 strength classification delivers optimal balance of hardness and durability for industrial use
• Coarse UNC threading enables faster installation and better performance in softer materials
• Full threading along 1" length offers maximum grip range and adjustment flexibility
• External hex drive design allows for high torque application with standard tools

Professional Applications & Engineering Value

This Grade 5 hex head screw with black oxide finish addresses critical industrial fastening challenges where corrosion resistance and structural integrity are paramount. The UNC coarse thread configuration ensures rapid assembly in manufacturing environments while maintaining secure connections in vibration-prone equipment. Engineered with Rockwell C25 hardness and 120,000 psi tensile strength, this fastener prevents stripping and maintains clamping force in heavy machinery, construction equipment, and automotive assemblies. The external hex drive accommodates high-torque applications without compromising drive integrity, making it ideal for maintenance operations and production lines requiring reliable, repeatable fastening solutions.

Specification Summary & Compliance

Manufactured to exacting Class 2A thread fit tolerances with UNC coarse thread spacing (1/4"-20). Complies with ASME B18.2.1 and SAE J429 specifications for dimensional accuracy and mechanical properties. Meets RoHS 3 (2015/863/EU) compliance requirements for environmental safety. The fully threaded design with right-hand direction ensures standardized installation across industrial applications.