S-90359A120 M5 x 20 mm Thumb Screws

Key Features & Benefits at a Glance

• Enhanced manual torque application with a wide 20.5 mm spade head for secure, tool-free tightening and loosening in confined spaces
• Superior corrosion resistance provided by the zinc-plated cast iron construction, ensuring long-term reliability in various industrial environments
• Quick and easy installation thanks to the coarse 0.8 mm pitch and fully threaded design, reducing assembly time and labor costs
• Consistent thread engagement with Class 8g metric thread fit, offering reliable fastening performance and vibration resistance
• Durable and robust build from cast iron material, capable of withstanding repeated use in demanding applications
• Wide compatibility with standard M5 metric components, simplifying inventory and replacement processes
• Safe for regulated industries with full compliance to RoHS 3 and REACH environmental standards

Professional Applications & Engineering Value

This M5 thumb screw is engineered to address common challenges in industrial assembly and maintenance, where tool access is limited or frequent adjustments are required. The zinc-plated cast iron construction provides excellent durability and corrosion protection, making it ideal for electrical enclosures, machinery panels, and automotive components exposed to harsh conditions. The spade head design and coarse 0.8 mm pitch enable high manual torque application without specialized tools, reducing downtime and improving workflow efficiency. Its fully threaded Class 8g metric thread ensures secure fastening and vibration resistance, preventing loosening in dynamic environments. By combining ease of use with robust performance, this screw delivers reliable manual fastening solutions for technicians and engineers across manufacturing, electronics, and equipment maintenance sectors.

Specification Summary & Compliance

This thumb screw features a metric M5 thread with 0.8 mm coarse pitch and Class 8g thread fit, ensuring precise dimensional accuracy per ISO standards. It is manufactured from zinc-plated cast iron and is fully threaded with a right-hand thread direction. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting strict environmental and safety requirements for industrial hardware.