S-92198A551 1/4"-20 x 2 1/4" 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 industrial environments.
• High tensile strength of 80,000 psi ensures reliable performance under significant load and stress.
• External hex drive and hex head design provides a secure grip for easy installation and removal with standard tools.
• Partially threaded shank allows for precise clamping force on specific joint sections.
• Class 2A thread fit with coarse UNC threading offers faster assembly and better tolerance to debris.
• Compliance with ASME B18.2.1 guarantees consistent quality, dimensional accuracy, and interchangeability.
• RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for global supply chains.

Professional Applications & Engineering Value

This 1/4"-20 UNC Hex Head Screw in 18-8 Stainless Steel is engineered to address common industrial challenges such as corrosion, vibration loosening, and high-stress fatigue. The coarse thread (UNC) and partially threaded design enhance grip and reduce the risk of cross-threading in heavy machinery, construction, and automotive assemblies. Its external hex drive ensures quick, tool-accessible fastening, while the material's inherent durability minimizes maintenance in outdoor or chemically exposed settings. With a 2-1/4" length and robust build, it delivers long-term reliability for structural frames, equipment mounts, and other demanding industrial applications.

Specification Summary & Compliance

This screw features a 1/4"-20 UNC coarse thread with Class 2A thread fit for standard dimensional accuracy. It is manufactured to meet ASME B18.2.1 specifications, ensuring consistent performance. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms adherence to environmental and safety regulations, making it suitable for global industrial use.