S-92196A316 1/4"-28 x 3 1/4" ASME B18.3 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior Corrosion Resistance - 18-8 stainless steel construction ensures long-lasting performance in harsh environments, reducing replacement frequency and maintenance costs
• Precision Thread Fit - Class 3A thread tolerance provides secure, vibration-resistant connections that maintain integrity under dynamic loads
• High Load Capacity - 70,000 psi tensile strength and Rockwell B70 hardness deliver reliable performance in demanding industrial applications
• Optimized Drive Engagement - Hex socket drive with 3/16" drive size ensures maximum torque transmission and prevents stripping during installation
• Fine Thread Advantage - 1/4"-28 UNF fine threads offer superior adjustment precision and better resistance to loosening under vibration
• Versatile Thread Configuration - Partially threaded design with 1-1/4" minimum thread length provides flexibility for various clamping and fastening scenarios
• Regulatory Compliance - Meets ASME B18.3 standards and environmental regulations including RoHS 3 and REACH for global market acceptance

Professional Applications & Engineering Value

This socket head cap screw delivers exceptional engineering value through its 18-8 stainless steel composition and Class 3A thread fit, specifically designed to address common industrial challenges. The fine UNF threads provide superior vibration resistance in machinery, automotive, and aerospace applications where precision fastening is critical. The hex socket drive enables high-torque installation in confined spaces, while the partially threaded configuration offers optimal clamping force distribution. With excellent corrosion resistance and 70,000 psi tensile strength, this fastener solves durability concerns in demanding environments, from marine equipment to chemical processing facilities, ensuring long-term reliability and reduced maintenance intervals.

Specification Summary & Compliance

This socket head cap screw maintains precise Class 3A thread fit tolerances according to UNF thread standards, ensuring consistent performance across industrial applications. The fastener complies with ASME B18.3 manufacturing specifications for dimensional accuracy and mechanical properties. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted substances. The combination of 1/4"-28 UNF fine threads, 3-1/4" overall length, and partially threaded design meets rigorous industrial standards for reliability and safety.