S-94967A382 1/4"-20 x 1" ASME B18.2.1, ASTM B117, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional strength and reliability with Grade 5 classification, providing 120,000 psi tensile strength for demanding industrial applications
• Superior corrosion protection through black corrosion-resistant coating, extending service life in harsh environments
• Optimized thread engagement with UNC coarse threading and Class 2A fit, ensuring secure fastening and easier installation
• Maximum driving torque capability thanks to the external hex head design, preventing stripping during high-torque applications
• Full thread coverage along the entire 1-inch length, offering versatile positioning and enhanced grip strength
• Industry-standard compliance with ASME B18.2.1, ASTM B117, and SAE J429 specifications, guaranteeing consistent quality and performance
• Environmental regulation adherence through RoHS 3 and REACH compliance, ensuring safe usage in regulated industries

Professional Applications & Engineering Value

This Grade 5 hex head screw delivers critical performance advantages for industrial assembly and machinery applications where vibration resistance and structural integrity are paramount. The black corrosion-resistant coated steel construction protects against environmental degradation in outdoor equipment, automotive components, and construction frameworks. The UNC coarse thread pattern with Class 2A fit provides superior resistance to loosening under dynamic loads while facilitating quicker installation in production environments. With fully threaded design and external hex drive, these screws offer maximum clamping force distribution and reliable torque transmission, making them ideal for heavy-duty fastening in manufacturing plants, transportation equipment, and structural steel connections where high tensile strength and long-term durability are essential.

Specification Summary & Compliance

This fastener maintains precise Class 2A thread fit tolerances according to ASME B18.2.1 specifications, ensuring consistent threading performance. Manufacturing complies with ASTM B117 salt spray testing requirements and SAE J429 mechanical properties for Grade 5 fasteners. The product meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations, including the latest SVHC updates. All dimensional and mechanical characteristics adhere to established industrial standards for UNC coarse thread fasteners with 1/4"-20 thread size and 1-inch length configuration.