Installing Windshield Brackets on Race Car, What Size Rivnuts Should I Use Options

[motorvated]

Like it says, I would like to be sure that I buy the proper size Rivnuts to affix the rubber backed aluminum brackets I fabricated to hold my windshield in place on the race car in the event of an impact. The metal of the windshield surround and of the cowl seem to be quite thin, and the Rivnuts I'm seeing appear to possibly be too deep to hold the Rivnut tightly in place. Anybody used Rivnuts for such an application, and if so, what size/dimensions did you use that worked well. Thanks, Mike.

[stownsen914]

Where are you putting them? Are these the bent metal tabs, like 2-3 along the bottom of the windshield and 2 more at the top? I've seen 6 mm and 1/4" bolts used for those. I use through bolts where I can. Are you putting tabs along A pillar as well? Is that why you want to use rivnuts? I guess with a removable roof you might need to do it that way. If you do the rivnuts, get steel ones. I'd worry about aluminum ones pulling out.