I also do not use the bolts that came with the versa buttons. I got grade 8 hardened bolts and then countersunk the head into the LW versa buttons. The lip on the versa is just to keep the loop from slipping off - the weight and pressure of the rope is on the bolt shanks - so there is no harm in counter sinking the bolts in the soft vinyl/plastic versa buttons. The stack far better this way. I also have went to epoxying on small 1/4 inch thick rubber pad were the two small bolts come in contact. Two loop bungees and that is all I need to get these thing rock solid and very quiet.