Patent ID: 11933175
Assignee: SANDVIK MINING AND CONSTRUCTION TOOLS AB
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A rock bolt arranged for installation within a bore formed in rock strata, the rock bolt comprising:
an elongate shaft having a leading end for installation into the bore and a threaded trailing end arranged to project from an open end of the bore;
an internally threaded nut attached at the trailing end arranged to mount a rock plate against a surface of the rock strata, the nut having an outside surface and an axially forward facing contact face arranged for positioning opposed to the rock plate and an axially rearward facing exposed face, and wherein the nut includes threads at the outside surface;
a recessed portion extending axially inward from the exposed face and defining an axially rearward facing display face being axially recessed relative to the exposed face; and
indicia provided at the display face.