S-92581A230 M4 x 8 mm DIN 464 Thumb Screws

Key Features & Benefits at a Glance

• Effortless manual tightening and loosening with a 16 mm knurled round head for superior grip without tools
• Enhanced corrosion resistance and durability thanks to the black-oxide steel finish
• Reliable fastening performance with a high tensile strength of 70,000 psi for demanding applications
• Precise and secure thread engagement ensured by the M4 x 0.7 mm coarse thread with Class 6g fit
• Quick and easy installation due to the fully threaded design and right-hand thread direction
• Long-lasting mechanical integrity supported by a Rockwell B84 hardness rating
• Broad compatibility and safety compliance meeting DIN 464 standards, RoHS 3, and REACH regulations

Professional Applications & Engineering Value

This M4 thumb screw is engineered for industrial and electronic assemblies where frequent adjustments and tool-free access are essential. The black-oxide steel construction provides excellent resistance to rust and wear, extending service life in harsh environments. Its fully threaded body and Class 6g thread fit ensure consistent clamping force and vibration resistance, reducing the risk of loosening in machinery, enclosures, and fixtures. The knurled head offers a non-slip surface, enabling quick manual operation in tight spaces, making it ideal for maintenance panels, prototyping, and production equipment that requires reliable, reusable fastening solutions.

Specification Summary & Compliance

This metric thumb screw features an M4 x 0.7 mm coarse thread with a Class 6g thread fit for precise dimensional accuracy. It is manufactured in compliance with DIN 464 standards and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe and sustainable use in global industrial applications.