S-90550A111 M2.5 x 5 mm Venting Stainless Steel Hex-Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Secure and efficient installation provided by the 1.5mm hex drive, minimizing tool slippage and head stripping.
• Optimal flush mounting achieved with the standard flat head profile and 90° countersink angle for a clean, finished appearance.
• Enhanced airflow and pressure equalization via the integrated vent (0.89mm diameter), preventing trapped air or moisture.
• Reliable and coarse threading with a Class 6g fit ensures easy starting and robust fastening in a variety of materials.
• Full-length threading (M2.5 x 0.45mm pitch) maximizes grip and load distribution along the entire 5mm length.
• Global compliance and safety guaranteed by meeting RoHS 3 and REACH regulations for responsible manufacturing.

Professional Applications & Engineering Value

This M2.5 metric flat head screw is engineered to solve critical challenges in precision assembly. The 18-8 stainless steel material provides excellent resistance to oxidation and corrosion, extending the service life of components in electronics, automotive, and instrumentation. The combination of a hex drive and fully threaded design ensures high torque transmission and superior holding power, reducing the risk of joint failure. The vented feature is particularly valuable in applications requiring pressure relief or drainage, preventing seal failure in enclosures. Its coarse thread pitch and precise Class 6g thread fit allow for quicker installation and reliable performance in softer materials or where vibration resistance is needed, making it a versatile and dependable choice for demanding industrial applications.

Specification Summary & Compliance

This screw conforms to metric thread standards with an M2.5 diameter, 0.45mm coarse pitch, and a Class 6g thread fit for standard tolerance. It is fully threaded with a right-hand direction and features a 90° countersink angle. The product is manufactured to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it is free from hazardous substances and meets stringent environmental and safety regulations for global use.