S-93190A307 1/4"-28 x 7/8" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and chemical exposure
• High tensile strength of 70,000 psi ensures reliable load-bearing capacity and structural integrity in demanding applications
• Precision Class 2A thread fit provides consistent, smooth installation and secure fastening with reduced risk of cross-threading
• External hex drive design allows for high-torque application using standard tools, speeding up assembly and maintenance
• Fine UNF threading (1/4"-28) offers improved vibration resistance and finer adjustment control compared to coarse threads
• Full threading along the 7/8" length maximizes grip and load distribution across the entire fastener
• Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees quality, safety, and environmental standards for global industrial use

Professional Applications & Engineering Value

Engineered for industrial and marine applications, this 1/4"-28 UNF hex head screw in 316 Stainless Steel addresses critical challenges like corrosion, high stress, and vibration. The fine thread and Class 2A fit ensure tight, reliable seals in equipment subjected to dynamic loads, while the external hex drive facilitates quick installation in confined spaces. Its fully threaded design and 70,000 psi tensile strength make it suitable for structural assemblies, machinery, and outdoor installations where durability and compliance with ASME B18.2.1 are paramount.

Specification Summary & Compliance

This screw features a 1/4"-28 UNF fine thread with Class 2A thread fit for precise tolerance, manufactured to ASME B18.2.1 standards. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are met for industrial use.