S-93190A861 5/8"-11 x 4 1/2" 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 chemical and marine environments
• High tensile strength of 70,000 PSI ensures reliable performance under heavy loads and vibration
• Rockwell B70 hardness provides excellent durability and resistance to wear in demanding applications
• Full UNC coarse threading delivers faster installation and superior grip in soft materials
• Class 2A thread fit guarantees consistent assembly compatibility and reduces cross-threading risks
• External hex drive design allows for high-torque installation with standard tools
• Comprehensive regulatory compliance including ASME B18.2.1, RoHS 3, and REACH for global industrial use

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 5/8"-11 UNC hex head screws in 316 stainless steel provide exceptional performance where corrosion resistance and structural integrity are critical. The fully threaded coarse spacing ensures maximum holding power in soft substrates while the external hex drive facilitates high-torque installation in confined spaces. Ideal for chemical processing equipment, marine hardware, and structural assemblies, these fasteners maintain their mechanical properties even in extreme environments. The combination of 70,000 PSI tensile strength and Rockwell B70 hardness makes them suitable for heavy-duty applications requiring reliable, long-term fastening solutions.

Specification Summary & Compliance

This 4-1/2" length hex head screw features 5/8"-11 UNC coarse thread with Class 2A thread fit for precise dimensional accuracy and reliable assembly. Manufactured to ASME B18.2.1 specifications for consistent quality and performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and unrestricted use in industrial applications worldwide.