You need to put a flat washer between the head of the bolt and the surface. What is happening is the shear of the bolt head against the fastening surface is more than the paint bond can withstand. That is very common on freshly painted surfaces. Even with a flat washer you need to go slow and easy when tightening so that the washer doesn't turn, that will cause the same problem. The amount of area that peeled is uncommon so I suspect that the prep could have been better. What usually peels is immediately around the fastener and is often addressed with a touch up brush.

Last edited by Tiny; 01/23/2011 8:27 PM.
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