S-92186A919 1"-8 x 3 3/4" 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 environments and chemical exposure
• Exceptional mechanical strength delivering 70,000 PSI tensile strength and Rockwell B70 hardness for reliable heavy-duty load-bearing
• Optimized assembly efficiency through the external hex drive and coarse UNC threading, enabling faster installation with standard tools
• Precise thread engagement ensured by Class 2A thread fit, reducing cross-threading risks and improving connection reliability
• Enhanced design flexibility with partially threaded shank, allowing for controlled clamping force on specific joint sections
• Long-term operational safety backed by full compliance with RoHS 3 and REACH environmental regulations
• Guaranteed interchangeability through strict adherence to ASME B18.2.1 dimensional standards

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these 316 stainless steel hex head screws solve critical fastening challenges in corrosive environments. The UNC coarse thread configuration combined with partial threading provides superior vibration resistance while allowing precise clamp load distribution across structural joints. Their external hex drive design ensures high torque transmission during installation, preventing tool slippage in high-stress assembly operations. These heavy-duty hex screws deliver consistent performance in chemical processing equipment, marine hardware, and food processing machinery where corrosion resistance and mechanical reliability are paramount. The 1"-8 thread size offers optimal strength-to-weight ratio for structural connections requiring periodic maintenance access.

Specification Summary & Compliance

Manufactured to exacting ASME B18.2.1 dimensional standards with Class 2A thread fit tolerance for consistent mating with corresponding nuts. The inch-system screws feature 1"-8 UNC coarse threads with right-hand direction and 2 1/4" minimum thread length. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe usage across regulated industries. Mechanical properties include 70,000 PSI tensile strength and Rockwell B70 hardness for durable performance.