Mercury - Quicksilver 816311T Tie Strap 8-Inch Marine Cable Strap 816311T. Overview. Every boat owner knows it's the small stuff that keeps things running smooth and looking tidy. The Quicksilver 816311T Tie Strap is one of those simple, handy parts that quietly does its job day after day. At 8 inches long, this self-cinching strap is made to secure cables, hoses, and wires anywhere on your boat - from the console to the engine bay.. It's built from tough, marine-grade plastic that won't dry out