S-92210A550 1/4"-20 x 2" ASME B18.3 Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
• Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable, long-term performance under high stress.
• Precise and secure fastening with Class 3A thread fit and UNC coarse threading, ensuring tight, vibration-resistant connections.
• Efficient installation and flush finish provided by the flat head with 82° countersink angle and 5/32" hex drive for easy torque application.
• Full thread engagement along the 2" length for maximum grip and load distribution in demanding applications.
• Compliance with rigorous standards including ASME B18.3 for dimensional accuracy, ensuring interchangeability and reliability.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements.

Professional Applications & Engineering Value

This 1/4"-20 x 2" flat head hex screw is engineered to address critical challenges in industrial and mechanical assemblies. Constructed from 18-8 stainless steel with a passivated finish, it provides excellent resistance to corrosion and oxidation, making it suitable for outdoor, marine, and chemical processing equipment. The UNC coarse thread and Class 3A fit ensure rapid assembly and high vibration resistance, reducing the risk of loosening in dynamic environments. The flat head design with an 82° countersink angle allows for a smooth, flush surface, preventing snagging and improving safety in machinery and structural frameworks. Fully threaded for maximum holding power, this screw is ideal for heavy-duty applications requiring ASME B18.3 compliance, offering dependable performance in automotive, aerospace, and construction sectors.

Specification Summary & Compliance

This product adheres to precise dimensional standards with a Class 3A thread fit and UNC coarse threading (1/4"-20), ensuring tight tolerances for secure fastening. It meets ASME B18.3 specifications for consistency and reliability. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its safety and sustainability for global industrial use.