S-90359A200 M8 x 20 mm Thumb Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance through zinc-plated cast iron construction, ensuring longevity in demanding industrial environments
• Quick manual operation with spade-shaped thumb head (27.5 mm width, 19 mm height) for tool-free assembly and disassembly
• Reliable coarse thread engagement with 1.25 mm pitch for faster installation and reduced cross-threading risks
• Precision thread fit meeting Class 8g standards for consistent performance in metric applications
• Full 20 mm threading providing maximum grip strength across the entire fastener length
• Right-hand thread design compatible with standard industrial equipment and maintenance procedures
• Regulatory compliance with RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

Engineered for industrial applications requiring frequent access or adjustment, this M8 thumb screw combines the durability of zinc-plated cast iron with user-friendly manual operation. The spade-shaped head provides substantial surface area for secure grip, eliminating the need for tools during maintenance cycles in machinery, electrical enclosures, and production equipment. The metric coarse threading (1.25 mm pitch) ensures rapid installation while the Class 8g thread fit maintains precise alignment, reducing wear and preventing loosening under vibration. This combination addresses critical pain points in assembly lines and field service where time efficiency and reliable fastening are paramount.

Specification Summary & Compliance

This fully threaded thumb screw features M8 x 1.25 mm metric coarse threads with Class 8g tolerance for precision fit. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions adherence. Dimensions include 20 mm length, 27.5 mm head width, and 19 mm head height with right-hand thread orientation.