S-92198A546 1/4"-20 x 1 1/2" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 Stainless Steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing performance
• Easy installation and removal with external hex drive and 7/16" head width for standard wrench compatibility
• Optimized thread engagement through Class 2A thread fit and coarse UNC threading, reducing cross-threading risks
• Versatile partial threading design allowing unthreaded shank sections for precise clamping and shear resistance
• Regulatory compliance assurance meeting ASME B18.2.1 standards and environmental regulations (RoHS 3, REACH)
• Dimensional consistency with precise 1½" length and ¼"-20 thread size for reliable interchangeability

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this 1/4"-20 UNC hex head screw delivers critical performance where corrosion resistance and structural integrity are paramount. The 18-8 Stainless Steel composition provides excellent protection against rust and chemical exposure in manufacturing, marine, and outdoor equipment applications. The partially threaded design offers superior clamping force distribution while the coarse thread configuration ensures rapid assembly in various materials. With 80,000 psi tensile strength, this external hex drive fastener maintains joint integrity under vibration and dynamic loads, making it ideal for machinery, structural frameworks, and heavy-duty equipment where ASME B18.2.1 compliance is required for quality assurance.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit tolerances with 1/4"-20 UNC coarse threads and right-hand thread direction. Manufacturing conforms to ASME B18.2.1 specifications ensuring dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, containing no restricted substances. Critical dimensions include 1½" length, ¾" minimum thread length, 7/16" head width, and 5/32" head height for consistent installation across industrial applications.