ProGrip M4 Steel (Full) Hex Low Profile (Part No. 2114-0425) is engineered for reliable performance in professional fastening, access hardware and assembly applications. Its listed specification includes Grip 0.5-2.5mm Hole 6.0mm. This rivetnut is designed to create a strong, reusable internal thread in thin sheet or other materials where conventional tapping may not be practical. It supports efficient installation and reliable fastening in fabricated panels, enclosures and general engineering assemblies.