S-92198A555 1/4"-20 x 3 1/4" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 18-8 Stainless Steel construction, ensuring long-term reliability in harsh environments.
• High tensile strength of 80,000 psi provides secure, vibration-resistant fastening for demanding applications.
• Rockwell B70 hardness offers superior durability and resistance to wear and deformation.
• Coarse UNC thread and Class 2A fit enable quick, easy installation and reliable performance in various materials.
• Partially threaded design allows for precise clamping force and reduced risk of cross-threading.
• External hex drive and hex head facilitate straightforward installation and removal with standard tools.
• Compliance with ASME B18.2.1, RoHS 3, and REACH ensures quality, safety, and environmental standards are met.

Professional Applications & Engineering Value

This 1/4"-20 UNC hex head screw in 18-8 Stainless Steel is engineered to address common industrial challenges like corrosion, vibration loosening, and mechanical stress. Its coarse thread and Class 2A thread fit provide excellent grip in metals, plastics, and wood, reducing installation time while maintaining integrity. The partially threaded shank ensures optimal clamping without thread damage, ideal for machinery, structural assemblies, and outdoor equipment. With 80,000 psi tensile strength and corrosion-resistant properties, it delivers reliable performance in manufacturing, construction, and marine applications, minimizing maintenance and downtime.

Specification Summary & Compliance

This screw features a 1/4"-20 UNC coarse thread with Class 2A thread fit for precise dimensional accuracy, ensuring consistent performance. It is manufactured in compliance with ASME B18.2.1 standards and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental safety and material restrictions.