John, these also work perfect if you want to mount antenna on the bed and have a cap / topper. My SWR's are close to 1 and I have a good ground. NO rust issues ( cause its stainless steel) and its thin enough to mount cap without cap sitting uneven. However it is thick enough to where it took a grunt to bend the tabs down once it was mounted. Also, no holes required. Ive put 5K miles on it and it hasnt even moved a little! Great product! :rockwoot: