Flip Bolt 3-1/2"" The tool-less countertop connector. The FlipBolt is fast and easy, requires no tools and is great for most countertop connections. Easy to use: Just finger tighten the nut then lower the top to tighten. Use 2-3 flipbolts per joint. Flip Bolt 4-1/2" - The Tool-less Countertop Connector