S-92581A223 M4 x 5 mm DIN 464 Thumb Screws

Key Features & Benefits at a Glance

• Enhanced manual grip and torque application with a 16mm diameter knurled round head, eliminating the need for tools in frequent adjustments.
• Superior corrosion resistance and durability thanks to the black-oxide steel finish, extending service life in demanding environments.
• High mechanical strength and reliable fastening with a Rockwell B84 hardness and 70,000 psi tensile strength, preventing stripping and failure.
• Precise and secure thread engagement ensured by the M4 x 0.7 mm coarse thread with a Class 6g fit, facilitating quick assembly.
• Versatile and space-efficient installation with a fully threaded 5mm length and 8mm collar diameter for compact designs.
• Guaranteed quality and international compatibility through compliance with the DIN 464 standard for dimensional accuracy.
• Safe for use in regulated industries as it is RoHS 3 and REACH compliant, meeting strict environmental and safety standards.

Professional Applications & Engineering Value

This M4 thumb screw is engineered to solve common industrial challenges where tool-less access and reliable fastening are critical. The black-oxide steel construction provides a robust barrier against rust and wear, making it ideal for electronic enclosures, machinery panels, and laboratory equipment that require frequent maintenance. The knurled head offers a non-slip surface, enabling operators to apply sufficient torque by hand even with gloves on, which speeds up assembly and reduces downtime. Its fully threaded design and coarse thread pitch ensure a strong hold in various materials, from metals to plastics, preventing loosening from vibrations. By integrating this metric thumb screw into your designs, you enhance usability while maintaining high tensile strength and compliance with industry norms.

Specification Summary & Compliance

This thumb screw features an M4 x 0.7 mm metric coarse thread with a Class 6g thread fit for precise dimensional tolerances. It is manufactured in accordance with the DIN 464 standard, ensuring consistent quality and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances and safe for industrial and consumer applications.