Quote Originally Posted by stovens View Post
Stev I notice you use large diameter flat washers when bolting directly to glass. I am guessing this is to put the pressure over a larger area of the fiberglass to prevent cracking the glass? I have running boards for my pickup that are made from fiberglass and I have been wondering one how tight to bolt them on, and 2 if the use of a washer will be necessary on the top side of the running board where the carraige style bolts go through? These are thick glass boards made by Bebops Glassworks for my truck. Thanks. Steve.
Steve it's always wise to spread the load but the carriage bolts will be fine, I do them up pretty tight but always use a spring washer.

.