SCREWS OR BOLTS?

Q: I am installing a Bimini top aboard our Cobalt. Should I use bolts or screws?

Devin McElvoy Atlantic City, New Jersey

A: Generally, I would suggest bolts for a high-load application such as a Bimini or canvas top. That said, it would depend upon the orientation. That is, if the fasteners are side-loaded— as they might be if the hardware were mounted to a cabin side—I would have little problem using screws. However, if the load is in line with the fastener—that is, the Bimini hardware is on the gunwale and the force will be trying to lift them out—I would suggest nuts and bolts if possible.

Of course, it’s not always possible, and one needs to weigh the need versus the risk. In most cases, using screws in properly sized pilot holes, coupled with the use of an adhesive sealant such as Sikaflex 291 or 3M 5200, will get the job done.