On my M1010, I'm going through one layer of steel, in the lower rear corner of the cab, on the passenger side. This looked about right to me, but perhaps I measured poorly. Is the steel really thicker than 1/16 there? Or perhaps the M1009 hole goes through more layers?
As I measure it, B is just big enough to accommodate one layer of the painted sheet steel used in my cab. I wasn't too worried about E. I mainly cared about B, C, and (A-C)/2, which is the thickness of the rubber between my wires and the steel. That's 5/16", which seems adequate. When it arrives, I'll post pictures.
![grommetHole.jpg grommetHole.jpg](https://www.steelsoldiers.com/data/attachments/402/402152-0db02da4b6f662a4a48e533815beb6ff.jpg)
This plug feeds things like battery maintainer/charger, a portable jump starter, and perhaps eventually a block heater.
As I measure it, B is just big enough to accommodate one layer of the painted sheet steel used in my cab. I wasn't too worried about E. I mainly cared about B, C, and (A-C)/2, which is the thickness of the rubber between my wires and the steel. That's 5/16", which seems adequate. When it arrives, I'll post pictures.
![grommetHole.jpg grommetHole.jpg](https://www.steelsoldiers.com/data/attachments/402/402152-0db02da4b6f662a4a48e533815beb6ff.jpg)
This plug feeds things like battery maintainer/charger, a portable jump starter, and perhaps eventually a block heater.
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