This lock plate for connecting rod bolts is intended for securing the rod fastening in a conventional combustion engine. The plate supports the bolt joint so the connecting rod stays fixed to the crankshaft. The part matches a defined engine type and fits in the standard layout of the rod assembly. The lock plate has dimensions that correspond to an application with matching thread and bolt diameter. The material is shaped for installation between bolt head and rod surface. The design allows bending of tabs to create a firm mechanical retention of the bolts under normal engine operating loads and rotations.