The pin is bent to secure it in place, creating a mechanical interlock that physically prevents the nut from turning. Technical Specifications
Hexagon Slotted Castle Nuts (also called crown nuts). iso 7035 pdf
Once tightened, a cotter pin (or split pin) is inserted through the nut's slots and the bolt's hole. The pin is bent to secure it in
The nut is tightened onto a bolt or stud that has a pre-drilled cross-hole in its threaded section. The nut is tightened onto a bolt or
ISO 7035 is an international technical standard that specifies the requirements for . These specialized fasteners are designed to provide a positive mechanical lock, preventing unintended rotation or loosening caused by vibration and dynamic loads. Overview of ISO 7035
Metric coarse pitch threads (e.g., M4 to M80).
The defining feature of an ISO 7035 nut is its "castle" top—a crowned section with vertical slots.