S-91005A035 M8 Flange Nuts

Key Features & Benefits at a Glance

• Enhanced load distribution with 19mm flange diameter to prevent surface damage and reduce the need for separate washers
• Superior corrosion resistance from black-oxide steel coating, extending service life in harsh industrial environments
• Secure, vibration-resistant fastening with coarse 1.25mm thread pitch for reliable performance under dynamic loads
• Precise Class 6G thread fit ensuring smooth assembly and consistent torque application with standard M8 bolts
• Easy installation and removal using standard 13mm wrenches with external hex drive design
• Compliance with environmental regulations including REACH and RoHS 3 for global manufacturing applications
• Robust 2.5mm flange thickness providing structural integrity and increased bearing surface for heavy-duty applications

Professional Applications & Engineering Value

This black-oxide steel flange nut delivers exceptional engineering value through its integrated flange design that eliminates the need for separate washers while providing superior load distribution. The M8 coarse thread with 1.25mm pitch ensures rapid assembly and maintains clamping force in high-vibration environments common in industrial machinery, automotive assemblies, and construction equipment. The black-oxide surface treatment creates a durable barrier against corrosion, making it ideal for applications exposed to moisture, chemicals, or outdoor conditions. With its 13mm hex profile and external drive style, technicians can achieve proper torque values efficiently, reducing installation time while maintaining joint integrity in demanding fastening solutions.

Specification Summary & Compliance

This metric flange nut features precise Class 6G thread fit according to ISO standards, ensuring compatibility with standard M8 bolts. The coarse thread spacing (1.25mm pitch) provides optimal performance in most industrial applications. Manufacturing complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) directives, confirming environmental responsibility and material safety. Dimensions include 19mm flange diameter, 2.5mm flange thickness, 13mm width across flats, and 10mm overall height, maintaining strict metric system tolerances for reliable performance in professional fastening systems.