S-92186A554 1/4"-20 x 3" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction
• High-strength performance with 70,000 psi tensile strength for demanding load applications
• Reliable thread engagement ensured by Class 2A thread fit for consistent assembly
• Optimized for high-torque applications with an external hex drive and 7/16" head width
• Enhanced durability from Rockwell B70 hardness, resisting wear and deformation
• Secure fastening in coarse materials with 1/4"-20 UNC coarse threading
• Versatile partial threading allowing for both clamping and alignment functions

Professional Applications & Engineering Value

This 1/4"-20 UNC hex head screw in 316 Stainless Steel is engineered to solve critical challenges in industrial settings where corrosion and mechanical stress are prevalent. The coarse thread (UNC) design provides excellent grip in softer materials and faster installation, while the external hex drive allows for high torque application with standard tools, preventing stripping. Its partially threaded shank offers a non-threaded section for precise alignment and shear resistance, making it ideal for machinery, marine equipment, and chemical processing applications. The combination of 70,000 psi tensile strength and Rockwell B70 hardness ensures long-term reliability under vibration and dynamic loads, reducing maintenance frequency and downtime.

Specification Summary & Compliance

This fastener features a 1/4"-20 UNC thread with Class 2A dimensional accuracy for consistent fit. It is manufactured in compliance with ASME B18.2.1 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring it is free from hazardous substances for safe industrial use.