S-93190A564 1/4"-20 x 5" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments including marine and chemical applications
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and mechanical stress
• Full UNC coarse threading provides faster installation and better resistance to vibration loosening
• External hex drive design allows for high torque application with standard tools, reducing installation time
• Class 2A thread fit guarantees consistent, precision mating with nuts and threaded components
• Rockwell B70 hardness maintains thread integrity and prevents stripping during repeated use
• Full regulatory compliance with ASME B18.2.1, RoHS 3, and REACH ensures safety and environmental standards are met

Professional Applications & Engineering Value

This 316 stainless steel hex head screw delivers exceptional engineering value in demanding industrial environments where corrosion resistance and mechanical strength are critical. The combination of 70,000 psi tensile strength and Rockwell B70 hardness ensures reliable performance in structural applications, machinery assembly, and marine equipment. The UNC coarse thread design provides superior grip in softer materials and resists vibration-induced loosening, while the external hex drive enables efficient installation in confined spaces. Particularly valuable in chemical processing, offshore platforms, and food processing equipment, this fully threaded screw maintains integrity despite exposure to moisture, chemicals, and temperature variations, reducing maintenance frequency and replacement costs.

Specification Summary & Compliance

This 1/4"-20 x 5" hex head screw features Class 2A thread fit per UNC standards, ensuring precise dimensional accuracy and reliable mating compatibility. Manufactured to ASME B18.2.1 specifications for dimensional consistency and mechanical properties. Fully compliant with RoHS 3 (2015/863/EU) for hazardous substance restrictions and REACH (EC 1907/2006) regulations concerning chemical safety. The inch system measurements and right-hand thread direction provide standardized compatibility across industrial applications requiring coarse thread spacing and external hex drive functionality.