S-92186A552 1/4"-20 x 2 1/2" 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 and outdoor applications
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and mechanical stress
• Rockwell B70 hardness provides excellent durability and resistance to wear and deformation
• External hex drive design allows for easy installation and high torque application with standard tools
• Coarse UNC thread with Class 2A fit enables quick assembly and reliable holding power in various materials
• Partially threaded shank offers optimal clamping force and prevents joint loosening in dynamic applications
• Comprehensive compliance with ASME B18.2.1, RoHS 3, and REACH standards ensures quality and environmental safety

Professional Applications & Engineering Value

This 1/4"-20 UNC hex head screw delivers exceptional engineering value in demanding industrial applications where corrosion resistance and mechanical strength are critical. The 316 Stainless Steel material provides superior performance in chemical processing, marine environments, and food processing equipment where moisture and corrosive agents are present. The coarse thread design ensures reliable fastening in softer materials and allows for quicker installation in production line settings. With its external hex drive and partially threaded configuration, this fastener offers optimal clamping force for machinery assembly, structural frameworks, and heavy equipment where vibration resistance is essential. The combination of 70,000 psi tensile strength and Rockwell B70 hardness makes it suitable for high-stress applications while maintaining corrosion resistance throughout its service life.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit with 1/4"-20 UNC coarse threading and 2 1/2" length with 3/4" minimum thread length. Manufactured to ASME B18.2.1 specifications with dimensional accuracy including 5/32" head height and 7/16" head width. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.