S-90550A123 M4 x 12 mm Venting Stainless Steel Hex-Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction, ensuring long-term reliability in harsh or humid environments.
• Secure and flush installation with a standard 90° countersink angle and flat head design, providing a smooth, level surface finish.
• High-torque assembly capability enabled by the 2.5mm hex drive, preventing cam-out and allowing for reliable tightening in confined spaces.
• Consistent and reliable thread engagement from the fully threaded Class 6g coarse pitch (0.7mm), facilitating quick installation and reducing cross-threading risks.
• Pressure equalization and reduced fluid trapping via the integrated 1.17mm vent, ideal for applications requiring drainage or air flow.
• Broad industrial compatibility with metric coarse threading (M4 x 0.7mm) and a 12mm length, making it a versatile fastener for various assemblies.
• Environmental and regulatory safety ensured by full compliance with RoHS 3 and REACH, supporting sustainable and safe manufacturing practices.

Professional Applications & Engineering Value

This M4 flat head hex drive screw is engineered to address critical challenges in precision assembly and corrosive environments. The 18-8 stainless steel material offers excellent resistance to oxidation and chemical exposure, making it ideal for electronics enclosures, automotive components, and outdoor machinery where moisture is a concern. The fully threaded Class 6g coarse pitch design ensures rapid, secure fastening with minimal risk of stripping, while the vented feature prevents pressure buildup and allows for drainage in submerged or sealed systems. Combined with a 2.5mm hex drive, this screw supports high-torque applications without slippage, providing dependable performance in tight spaces common in industrial equipment and consumer device manufacturing.

Specification Summary & Compliance

This screw adheres to metric threading standards with an M4 x 0.7mm coarse thread and a Class 6g thread fit for consistent dimensional accuracy. It features a flat head with a 90° countersink angle, 8mm head diameter, and is fully threaded along its 12mm length. The product is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial and consumer applications.