S-92800A315 7/8"-14 x 5 1/2" 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments and chemical exposure
• Superior load-bearing capacity with 80,000 psi tensile strength for demanding heavy-duty applications
• Precise thread engagement with Class 2A fit and UNF fine threading for secure, vibration-resistant connections
• Optimized installation efficiency with external hex drive and standard 1 5/16" head width for common tool compatibility
• Enhanced durability with Rockwell B70 hardness rating, maintaining structural integrity under repeated stress
• Reliable partial threading design providing maximum grip length while preventing thread damage in blind holes
• Full regulatory compliance meeting RoHS 3 and REACH standards for global environmental and safety requirements

Professional Applications & Engineering Value

This 18-8 stainless steel hex head screw delivers critical performance advantages in demanding industrial settings where corrosion resistance and structural integrity are paramount. The UNF fine threading with Class 2A thread fit ensures precise engagement in high-vibration applications, preventing loosening in machinery, structural assemblies, and heavy equipment. The partially threaded design maximizes grip length while protecting threads from damage during installation. With 80,000 psi tensile strength and Rockwell B70 hardness, this fastener maintains reliability in chemical processing, marine environments, and construction applications where exposure to moisture and corrosive elements would compromise ordinary fasteners. The external hex drive and standardized dimensions ensure compatibility with common industrial tools, streamlining installation across manufacturing and maintenance operations.

Specification Summary & Compliance

This 7/8"-14 UNF hex head screw features precise Class 2A thread fit per UNF standards with fine thread spacing for optimal engagement. Manufacturing specifications include 5 1/2" length with 2" minimum thread length, 1 5/16" head width, and 35/64" head height. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets without hazardous substance restrictions.