S-94309A255 M8 Thumb Nuts

Key Features & Benefits at a Glance

• Effortless manual installation with wing-shaped head design for quick hand tightening without tools, saving time in assembly and maintenance tasks.
• Superior corrosion resistance from zinc-plated steel construction, ensuring long-term reliability in harsh industrial environments.
• Precise thread engagement with Class 6H fit for secure fastening and reduced risk of cross-threading or loosening under vibration.
• High durability and strength from metric coarse threading (M8 x 1.25mm), providing robust performance in high-stress applications.
• Wide compatibility with standard M8 metric bolts, offering versatile use across various machinery and equipment setups.
• Compliance with environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use in regulated industries.
• Optimized dimensions (41.3mm width, 25.4mm height) for easy grip and handling, enhancing user comfort during repeated adjustments.

Professional Applications & Engineering Value

This M8 thumb nut is engineered for industrial settings where manual fastening efficiency and durability are critical. The zinc-plated steel material combats rust and wear, extending service life in exposed or high-moisture environments like outdoor machinery, automotive assemblies, and electrical enclosures. With a coarse thread pitch of 1.25mm and Class 6H thread fit, it ensures rapid installation and reliable hold, reducing assembly time and minimizing the risk of thread stripping. The wing profile allows for tool-free adjustments, making it ideal for applications requiring frequent disassembly, such as maintenance panels, jigs, and temporary fixtures. By integrating right-hand threading and a 22.23mm base diameter, it delivers consistent performance in vibration-prone systems, supporting operational continuity and reducing downtime.

Specification Summary & Compliance

This thumb nut adheres to metric coarse thread standards with M8 x 1.25mm dimensions and Class 6H thread fit for precise tolerance alignment. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory acceptance. The construction follows industrial fastening specifications, with a base diameter of 22.23mm, height of 25.4mm, and width of 41.3mm, supporting consistent performance in manual tightening applications.