S-97654A661 M4 x 20 mm Stainless Steel Flanged Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel and passivated finish, ideal for harsh industrial environments.
• High tensile strength of 70,000 psi ensures reliable load-bearing capacity and joint integrity in demanding applications.
• Easy installation and removal thanks to the hex drive design, reducing assembly time and tool slippage risks.
• Enhanced stability and distribution from the flanged design, eliminating the need for separate washers and preventing surface damage.
• Precise thread engagement with Class 6g coarse threading, providing secure fastening and vibration resistance.
• Full threading along the 20mm length allows for adjustable grip depth and consistent clamping force.
• Compliance with RoHS 3 and REACH standards ensures environmental safety and regulatory acceptance in global markets.

Professional Applications & Engineering Value

This M4 metric screw with 18-8 stainless steel construction and passivated finish addresses common industrial challenges such as corrosion, vibration loosening, and assembly efficiency. The flanged hex drive rounded head design simplifies installation in tight spaces while the coarse thread (0.7mm pitch) and Class 6g fit ensure quick, secure fastening in materials like metal, plastic, or composites. Ideal for machinery, automotive, and electronics assemblies, it provides long-term reliability by resisting chemical exposure and mechanical stress, reducing maintenance needs and downtime.

Specification Summary & Compliance

This screw meets metric thread standards with M4 x 0.7mm coarse threading and Class 6g tolerance for precise fit. It is fully threaded, 20mm in length, and features a flange diameter of 9.4mm. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), it adheres to environmental and safety regulations, ensuring suitability for industrial and export-oriented applications.