S-93190A595 5/16"-18 x 3" 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 industrial and marine environments
• High tensile strength of 70,000 psi ensures reliable, long-lasting fastening under heavy loads
• Rockwell B70 hardness provides excellent durability and resistance to wear and deformation
• Coarse UNC threading allows for quicker installation and better performance in softer materials
• Class 2A thread fit guarantees consistent, precise engagement for reduced assembly issues
• Fully threaded design offers maximum grip and holding power along the entire 3" length
• External hex drive enables easy installation and removal with standard tools

Professional Applications & Engineering Value

This 5/16"-18 UNC hex head screw in 316 stainless steel is engineered to solve critical fastening challenges in demanding environments. Its coarse thread and Class 2A fit provide rapid, secure installation in structural assemblies, machinery, and outdoor equipment, minimizing cross-threading risks. The fully threaded 3" length ensures uniform stress distribution, preventing joint failure in high-vibration applications. With exceptional corrosion resistance, it performs reliably in chemical processing, marine, and food industry settings where moisture and corrosive agents are present. The external hex drive facilitates efficient maintenance, making it a preferred choice for industrial hex screws requiring both strength and easy serviceability.

Specification Summary & Compliance

This screw features a 5/16"-18 UNC coarse thread with Class 2A thread fit for consistent dimensional accuracy. It is manufactured in accordance with ASME B18.2.1 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global markets.