S-97654A620 1/4"-20 x 1 1/4" Stainless Steel Flanged Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments.
• High tensile strength of 70,000 PSI ensures reliable, heavy-duty fastening for demanding mechanical applications.
• Excellent torque transmission via the hex drive design, allowing for secure installation and removal with standard tools.
• Enhanced load distribution from the integrated flange, reducing the need for a separate washer and simplifying assembly.
• Precise and secure thread engagement with Class 3A UNC coarse threads, providing consistent performance in various materials.
• Durable and long-lasting performance supported by Rockwell B70 hardness, resisting wear and deformation under stress.
• Environmental compliance with RoHS 3 and REACH standards, ensuring safe use in regulated industries.

Professional Applications & Engineering Value

This 18-8 stainless steel flanged hex drive screw is engineered to address common industrial challenges, such as vibration loosening and corrosion-induced failure. The fully threaded UNC coarse spacing and Class 3A thread fit deliver reliable fastening in metals and plastics, while the passivated finish significantly enhances corrosion resistance, making it suitable for outdoor equipment, machinery assembly, and automotive components. Its rounded head style and integrated flange provide a clean appearance and improved load-bearing surface, reducing installation time and maintenance costs in heavy-duty screw applications.

Specification Summary & Compliance

This screw adheres to UNC thread standards with a Class 3A thread fit for precise dimensional accuracy. It is manufactured from 18-8 stainless steel with a passivated finish and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and reliability in industrial use.