S-92186A325 1/4"-28 x 2" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for reliable performance under heavy loads
• Precise thread engagement with Class 2A UNF fine threading ensuring secure fastening and vibration resistance
• Optimized drive efficiency through external hex head design providing maximum torque transmission and easy installation
• Reduced assembly time with partially threaded shank design allowing for controlled clamping force and simplified alignment
• Regulatory compliance assurance meeting ASME B18.2.1 specifications and environmental standards including RoHS 3 and REACH
• Long-term reliability with fine thread spacing maintaining consistent performance in high-vibration applications

Professional Applications & Engineering Value

This 316 stainless steel hex head screw delivers critical performance advantages in demanding industrial settings where corrosion resistance and mechanical integrity are paramount. The UNF fine threading with Class 2A fit provides superior vibration resistance compared to coarse threads, making it ideal for machinery, equipment assembly, and structural applications subject to dynamic loads. The partially threaded design ensures precise clamping force distribution while the external hex drive enables high-torque installation without stripping. Engineered for chemical processing, marine environments, and food processing equipment, this fastener's corrosion-resistant properties prevent degradation from moisture, chemicals, and temperature variations, significantly extending service life and reducing maintenance frequency in critical applications.

Specification Summary & Compliance

This hex head screw features precision 1/4"-28 UNF fine threading with Class 2A thread fit per ASME standards, ensuring consistent dimensional accuracy and reliable performance. The fastener complies with ASME B18.2.1 manufacturing specifications for hex head screws and meets environmental regulations including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) requirements. With a specified minimum thread length of 3/4" and overall length of 2", the screw maintains strict tolerance control throughout production for dependable performance in industrial fastening applications.