S-92186A553 1/4"-20 x 2 3/4" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
• High tensile strength of 70,000 PSI ensures reliable performance under heavy loads and vibration
• Class 2A thread fit with UNC coarse threading provides smooth assembly and secure fastening in various materials
• Partially threaded design allows for precise clamping force control and reduced thread galling
• External hex drive and standard hex head enable easy installation with common tools and high torque application
• Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees quality, safety, and environmental responsibility
• Rockwell B70 hardness offers excellent durability and resistance to wear over extended use

Professional Applications & Engineering Value

This 1/4"-20 UNC hex head screw in 316 stainless steel is engineered to address critical challenges in industrial settings, such as corrosion from moisture, chemicals, and saltwater exposure. The coarse thread design ensures quick installation and strong holding power in soft materials or where vibration resistance is paramount, reducing the risk of loosening. With a partially threaded shank, it provides optimal clamp load distribution, minimizing stress concentration and preventing joint failure. Ideal for heavy-duty applications in construction, marine, and chemical processing industries, this screw combines high tensile strength and external hex drive for efficient maintenance and long-term reliability, supporting machinery, structural frames, and equipment assemblies that demand consistent performance under pressure.

Specification Summary & Compliance

This product adheres to precise dimensional standards, including Class 2A thread fit for consistent interchangeability and UNC coarse threading per industry norms. It meets ASME B18.2.1 specifications for hex head screws, ensuring reliable manufacturing quality. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances and supporting environmental and safety standards in global supply chains.