S-92185A339 1/4"-28 x 2 1/2" Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance thanks to 316 stainless steel construction with passivated finish, ideal for harsh environments and chemical exposure
• Superior thread engagement and reliability with Class 3A thread fit, ensuring precise assembly and reduced risk of stripping in critical applications
• High mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for dependable performance under heavy loads and stress
• Optimized drive efficiency featuring a standard hex socket head with 3/16" drive size for secure tool engagement and reduced cam-out risk
• Fine thread precision with 1/4"-28 UNF right-hand threads providing enhanced adjustment control and vibration resistance in assemblies
• Versatile partial threading allowing for both secure fastening and smooth shank alignment in a wide range of industrial components
• Full regulatory compliance meeting RoHS 3 and REACH standards for safe, environmentally conscious use in global markets

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 316 stainless steel socket head cap screws deliver outstanding performance where corrosion resistance and mechanical integrity are paramount. The combination of UNF fine threads and Class 3A thread fit ensures superior clamping force distribution and vibration resistance in precision machinery, automotive assemblies, and marine equipment. The passivated finish enhances surface durability while maintaining the material's inherent resistance to chlorides and acidic conditions. With 70,000 psi tensile strength and Rockwell B70 hardness, these fasteners prevent thread deformation and failure in high-stress applications, making them ideal for structural frameworks, pump systems, and processing equipment where reliability cannot be compromised.

Specification Summary & Compliance

This socket head cap screw features precision 1/4"-28 UNF fine threads with Class 3A thread fit for tight tolerance applications. Manufacturing complies with industry standards for dimensional accuracy, including head diameter (3/8"), length (2-1/2"), and partial threading configuration. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions adherence for international industrial use.