S-92137A320 M4 x 25 mm ISO 7380-2 Steel Flanged Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional durability with Class 10.9 strength grade and 100,000 psi tensile strength, ensuring reliable performance under high-stress conditions
• Superior corrosion resistance from the black-oxide finish on alloy steel, extending service life in harsh industrial environments
• Easy installation and removal with a 2.5 mm hex drive and rounded button head design, reducing assembly time and tool wear
• Secure fastening in coarse-thread applications due to the M4 x 0.7 mm fully threaded coarse pitch, providing excellent grip in soft materials
• Enhanced load distribution from the integrated flange, minimizing surface damage and improving joint integrity
• Precise fit and interchangeability with Class 6g thread fit and ISO 7380-2 compliance, ensuring consistent quality in metric assemblies
• Environmentally responsible manufacturing meeting RoHS 3 and REACH standards, supporting sustainable procurement policies

Professional Applications & Engineering Value

This M4 rounded head hex screw is engineered to address common challenges in industrial settings, such as vibration loosening and corrosion-induced failure. The black-oxide alloy steel construction offers a robust barrier against moisture and chemicals, making it ideal for automotive, machinery, and outdoor equipment where exposure to elements is frequent. Its fully threaded coarse pitch design ensures rapid installation and strong holding power in materials like aluminum or plastics, reducing the risk of stripping. With a Class 10.9 strength rating and Rockwell C32 hardness, it withstands dynamic loads and repeated adjustments without compromising integrity. The flanged button head style distributes clamping force evenly, preventing surface indentation and enhancing aesthetic appeal in visible assemblies. By adhering to ISO 7380-2, this screw delivers reliable performance in precision-driven applications, from electronic enclosures to structural frameworks.

Specification Summary & Compliance

This fastener features precise Class 6g thread fit and metric coarse threading (M4 x 0.7 mm) with a length of 25 mm, ensuring dimensional accuracy per international standards. It complies with ISO 7380-2 for consistent quality and performance. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its safety and sustainability for global industrial use.