S-97646A332 M8 x 25 mm 18-8 Stainless Steel Serrated-Flange Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• High mechanical strength with 100,000 psi tensile strength and Rockwell B100 hardness for reliable, long-lasting fastening
• Secure anti-loosening performance due to integrated serrations that provide positive locking without additional components
• Efficient installation and removal with external hex drive and 13mm head width for standard tool compatibility
• Enhanced load distribution through the 18mm flange diameter, reducing surface pressure and material stress
• Precise thread engagement with Class 6g metric coarse thread (M8 x 1.25mm) ensuring consistent fit in tapped holes
• Full-length threading for maximum grip along the entire 25mm shank, providing uniform clamping force

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this M8 flanged hex head screw addresses critical assembly challenges. The 18-8 stainless steel material offers excellent resistance to oxidation and chemical exposure, making it suitable for outdoor equipment, food processing machinery, and marine hardware. The flanged design eliminates the need for separate washers, speeding up installation while providing a larger bearing surface to prevent pull-through in softer materials. Serrations under the head bite into surfaces, resisting vibration-induced loosening in dynamic systems like automotive components or conveyor systems. Combined with a fully threaded M8 x 1.25mm coarse thread, it ensures rapid assembly and reliable performance in high-vibration environments where fastener integrity is paramount.

Specification Summary & Compliance

This metric screw adheres to precise dimensional standards with Class 6g thread fit for consistent interchangeability. The external hex drive and fully threaded M8 x 1.25mm coarse thread profile comply with ISO metric specifications. Manufacturing and material composition meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, ensuring environmental safety and unrestricted use in industrial and consumer products across global markets.