S-93190A544 1/4"-20 x 1 1/4" 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 tensile strength of 70,000 psi ensures reliable performance under heavy loads and stress
• Excellent durability and wear resistance provided by Rockwell B70 hardness rating
• Quick and easy installation with standard external hex drive and coarse UNC threads
• Precise Class 2A thread fit guarantees consistent engagement and secure fastening
• Full threading along the 1 1/4" length offers maximum grip and adjustment flexibility
• Compliance with major industry standards including ASME B18.2.1, RoHS, and REACH

Professional Applications & Engineering Value

Engineered for demanding industrial settings, this 1/4"-20 UNC hex head screw in 316 Stainless Steel provides exceptional resistance to chemicals, saltwater, and extreme temperatures, making it ideal for marine, chemical processing, and outdoor applications. The coarse thread design and external hex drive enable rapid assembly and disassembly, reducing labor time in maintenance and production lines. With its fully threaded shank and Class 2A thread fit, it ensures uniform load distribution and vibration resistance, preventing loosening in high-stress machinery and structural frameworks. This screw delivers long-term reliability, minimizing downtime and replacement costs in corrosive or high-load environments.

Specification Summary & Compliance

This product features a 1/4"-20 UNC coarse thread with Class 2A thread fit for standard dimensional accuracy and interchangeability. 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 safety and sustainability in industrial use.