S-92185A579 5/16"-18 x 5/8" Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh environments and chemical exposure
• Exceptional mechanical strength delivering 70,000 psi tensile strength and Rockwell B70 hardness for heavy-duty applications
• Precise thread engagement with Class 3A fit ensuring reliable, vibration-resistant connections in critical assemblies
• Optimized drive performance featuring 1/4" hex socket for high-torque installation without cam-out or stripping
• Full thread coverage along the 5/8" length provides maximum grip and adjustment flexibility
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for environmentally responsible manufacturing
• Coarse UNC thread design enables quick assembly and reduced cross-threading risk in industrial applications

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 316 stainless steel socket head cap screws provide critical corrosion resistance where exposure to chemicals, moisture, or extreme temperatures would compromise ordinary fasteners. The Class 3A thread fit ensures precise tolerance control for vibration-prone equipment, while the passivated finish creates an additional protective oxide layer that significantly extends service life in marine, chemical processing, and food equipment applications. The combination of 70,000 psi tensile strength and fully threaded design delivers uniform stress distribution across the entire engagement length, preventing joint failure in high-stress assemblies. The 1/4" hex drive accommodates standard industrial tools for efficient installation in confined spaces where wrench clearance is limited.

Specification Summary & Compliance

This fastener features 5/16"-18 UNC coarse threads with Class 3A precision tolerance for superior thread engagement. Manufactured from 316 stainless steel with passivated finish for enhanced corrosion protection. Dimensions include 5/8" length, 15/32" head diameter, and 5/16" head height with standard socket head profile. Mechanical properties include 70,000 psi tensile strength and Rockwell B70 hardness. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations.