S-97654A264 1/4"-20 x 3/4" 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, ensuring long-term reliability in harsh environments.
• High-strength performance with 70,000 psi tensile strength and Rockwell B70 hardness, providing dependable load-bearing capacity for demanding applications.
• Effortless installation and removal via the hex drive design, allowing for secure tool engagement and reduced assembly time.
• Enhanced stability and distribution of clamping force from the integrated flange, eliminating the need for a separate washer and improving joint integrity.
• Precise and secure thread engagement with Class 3A UNC coarse threads, ensuring consistent, vibration-resistant fastening in various materials.
• Full threading for maximum grip length, offering versatile fastening depth and strong holding power across the entire screw length.
• Compliance with stringent environmental regulations, including RoHS 3 and REACH, making it suitable for global supply chains and eco-conscious industries.

Professional Applications & Engineering Value

This 18-8 stainless steel flanged hex drive rounded head screw is engineered to address common industrial challenges such as corrosion-induced failure and assembly inefficiency. The passivated finish significantly enhances its resistance to oxidation and chemical exposure, making it ideal for outdoor equipment, marine hardware, and chemical processing facilities. The combination of UNC coarse threads and Class 3A thread fit ensures quick, reliable installation in both soft and hard materials, reducing the risk of cross-threading. The integrated flange distributes load evenly, preventing surface damage and maintaining seal integrity in assembled components. With a high tensile strength of 70,000 psi, it provides a robust fastening solution for machinery, automotive assemblies, and structural frameworks where vibration and dynamic loads are concerns, ultimately minimizing maintenance downtime and extending service life.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards with a Class 3A thread fit for precise dimensional accuracy and reliable performance. Manufacturing and material specifications ensure consistent quality, with full compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally regulated applications and global market requirements.