S-92198A505 5/16"-18 x 14" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional tensile strength of 80,000 psi ensures reliable performance under heavy loads
• Secure fastening capability with Class 2A thread fit and partially threaded design for optimal grip
• Easy installation and removal with external hex drive and standard 1/2" head width
• Long-term durability backed by Rockwell B70 hardness for repeated use without deformation
• Industry-standard compatibility with UNC coarse threads and 5/16"-18 size for versatile applications
• Regulatory compliance assurance meeting ASME B18.2.1 specifications and environmental standards

Professional Applications & Engineering Value

This 5/16"-18 UNC hex head screw delivers critical engineering solutions for industrial applications where corrosion resistance and structural integrity are paramount. The 18-8 stainless steel composition provides excellent protection against rust and chemical exposure, making it ideal for marine, chemical processing, and outdoor installations. The partially threaded design with coarse UNC threads ensures superior clamping force distribution while preventing joint loosening under vibration. With its external hex drive and substantial 14" length, this fastener enables efficient installation in deep-set applications and structural assemblies. The combination of 80,000 psi tensile strength and Rockwell B70 hardness guarantees reliable performance in heavy machinery, construction frameworks, and industrial equipment where failure is not an option.

Specification Summary & Compliance

This heavy-duty hex head screw features precise Class 2A thread fit with 5/16"-18 UNC coarse threads in right-hand direction. Manufacturing complies with ASME B18.2.1 standards for dimensional accuracy and performance. 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. Thread specifications include 0.3125" diameter with minimum 1-1/8" thread length, providing optimal engagement for secure fastening applications.