S-92198A562 1/4"-20 x 5" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh environments and long-term outdoor use.
• High tensile strength of 80,000 psi ensures reliable performance under heavy loads and prevents fastener failure in demanding applications.
• Excellent durability and wear resistance provided by Rockwell B70 hardness, maintaining thread integrity through repeated use.
• Easy installation and removal with the external hex drive and UNC coarse threading, reducing assembly time and effort.
• Precise thread fit (Class 2A) guarantees consistent engagement and reduces the risk of cross-threading during installation.
• Partial threading design offers optimal clamping force for materials where full threading isn't required, enhancing joint stability.
• Compliance with major industry standards including ASME B18.2.1, RoHS 3, and REACH, ensuring safety and regulatory acceptance.

Professional Applications & Engineering Value

This 1/4"-20 x 5" hex head screw is engineered from 18-8 stainless steel to solve critical challenges in industrial settings, such as corrosion in marine, chemical, or outdoor applications. The UNC coarse thread and external hex drive enable quick, secure fastening in heavy machinery, structural frameworks, and assembly lines, minimizing downtime. Its 80,000 psi tensile strength and Rockwell B70 hardness provide dependable load-bearing capacity, preventing stripping or shearing under stress. The partially threaded design ensures focused clamping on specific sections, ideal for securing thick materials or components where vibration resistance is crucial. By meeting ASME B18.2.1 specifications, it guarantees dimensional accuracy and interoperability, making it a trusted choice for engineers and procurement specialists seeking durability and compliance.

Specification Summary & Compliance

This screw features a 1/4"-20 UNC coarse thread with a Class 2A thread fit for standard tolerance and ease of assembly. It is manufactured in accordance with ASME B18.2.1 for dimensional consistency and performance. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) ensures it is free from hazardous substances, supporting environmental and safety standards in global supply chains.