We love to hear feedback from you. Let us know what you think about how we can improve your shopping experience. We really appreciate it.
Thank you for taking your time and giving us your feedback.
Not sure what you mean by bolt mounting system. It use carriage bolts with Nylock nuts.
The pattern should be from left edge to center of first hole - 2-5/8"then repeating on 11.25" from center of hole to center of next hole