S-90909A717 M4 x 8 mm ISO 7380 Stainless Steel Flanged Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and passivated finish, ideal for harsh environments and extended service life.
• Enhanced load distribution and secure fastening thanks to the integrated flange, eliminating the need for a separate washer.
• High-strength performance with a tensile strength of 70,000 psi, providing reliable clamping force and joint integrity.
• Quick and easy installation with a 2.5 mm hex drive and button head design, allowing for efficient assembly in confined spaces.
• Precise and reliable thread engagement with a fully threaded M4 x 0.7 mm coarse thread and Class 6g fit, ensuring consistent performance.
• Compliance with international standards including ISO 7380, RoHS 3, and REACH, guaranteeing quality and environmental safety for global projects.
• Durable, wide rounded head profile that provides a low-profile, finished appearance while resisting socket cam-out.

Professional Applications & Engineering Value

This M4 flanged hex button head screw is engineered to solve critical fastening challenges in demanding industrial applications. Manufactured from 316 stainless steel with a passivated finish, it offers exceptional resistance to corrosion from chemicals, saltwater, and atmospheric exposure, making it a top choice for marine equipment, chemical processing plants, and food-grade machinery. The integrated flange distributes clamping pressure over a wider area, reducing surface damage and preventing loosening under vibration, which is vital for assembly lines and automotive components. The coarse metric thread (M4 x 0.7 mm) and Class 6g fit enable rapid installation and secure holding power in metals and plastics, streamlining production while the hex drive ensures high torque transfer without stripping. Its compliance with ISO 7380 ensures dimensional consistency for reliable replacements and OEM specifications.

Specification Summary & Compliance

This screw features an M4 thread size with a 0.7 mm coarse pitch and a length of 8 mm, manufactured to a Class 6g thread fit for standard clearance and easy assembly. The flange diameter is 9.4 mm with a head height of 2.2 mm. It is fully threaded and meets the dimensional requirements of the ISO 7380 standard. The product is confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety regulations for hazardous substances.