1. Woodwork for Inventor significantly speeds up the hardware placement process. You can place multiple instances of hardware using model geometry and some additional work planes as a reference.
2. Use the Plane creation tool.
3. Create work planes that are necessary to set the position of the central axis for placing hardware elements using an offset from a selected plane or edge. 
3. Create work planes that are necessary to set the position of the central axis for placing hardware elements using an offset from a selected plane or edge.
4. You may need to create some more work planes to determine the position of the central axis necessary for the placement of the remaining hardware elements.
