S-92198A114 1/4"-28 x 2 1/4" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments and extended service life.
• High tensile strength of 80,000 psi ensures reliable performance under significant load and stress, reducing the risk of fastener failure.
• Precision UNF fine threading and Class 2A fit provide a secure, vibration-resistant connection for critical assemblies.
• External hex drive and hex head design allows for high-torque installation and easy removal with common tools, speeding up maintenance.
• Partial threading offers an unthreaded shank for precise clamping and alignment in structured applications.
• Compliance with ASME B18.2.1 guarantees dimensional accuracy and interchangeability, ensuring consistent quality and fit.
• Meets RoHS 3 and REACH regulations for safe use in regulated industries, supporting your environmental and safety compliance goals.

Professional Applications & Engineering Value

This 1/4"-28 UNF Hex Head Screw in 18-8 Stainless Steel is engineered to address common industrial challenges such as corrosion-induced degradation and joint loosening under dynamic loads. The fine UNF thread and Class 2A thread fit deliver superior clamping force and vibration resistance, making it ideal for machinery, automotive subsystems, and heavy-duty equipment where reliability is paramount. Its 80,000 psi tensile strength and Rockwell B70 hardness ensure it withstands high-stress conditions without stripping or shearing. The external hex drive facilitates quick assembly and disassembly, reducing downtime in maintenance-intensive operations. This combination of material properties and precise threading offers long-term durability and performance in demanding environments.

Specification Summary & Compliance

This screw features a 1/4"-28 UNF fine thread with a Class 2A thread fit for precise dimensional tolerance, a length of 2-1/4", and is partially threaded. It is manufactured in compliance with ASME B18.2.1 specifications and is verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to international safety and environmental standards.