Screws or rivets???

[marshrunner757]

If I use screws they will be SS

[Gerald]

Originally Posted by marshrunner757

If I use screws they will be SS

Look to see or ask what grade the SS are the screw. Not buy if they are 304. The 304 grade will rust and you can check the screws with a magnet. 304 is more like steel and will attach to a magnet. Higher grades of SS are not magnetic.

[CajunChristian]

2 years ago, I visited with Gaylen, the owner and manufacturer of SouthFork Boats. That same week I visited with the owner and manufacturer of WeldBilt boats.
The question came up while talking with Gaylen about whether I should rivet or screw the flooring material I bought from him. His explanation made sense to me.
He said that when you insert a screw into a rib, the screw exerts pressure outward from the screw and holds by exerting that outward pressure. A rivet uses downward pressure to hold the material down and does not exert outward forces on the ribs. He claims you are more likely to crack a rib where you have drilled and inserted the screw because of the outward forces. He has been SUCCESSFULLY building hulls for nearly 30 years, so I tend to believe him. It sounded like a perfectly plausible explanation.
I posed the same question to Bill at WeldBilt, he gave the exact same answer. Those guy have made their living building aluminum boats for decades, I figure they know more than I do so I listen to their advice.
D

[Shawn Braquet]

Originally Posted by CajunChristian

2 years ago, I visited with Gaylen, the owner and manufacturer of SouthFork Boats. That same week I visited with the owner and manufacturer of WeldBilt boats.
The question came up while talking with Gaylen about whether I should rivet or screw the flooring material I bought from him. His explanation made sense to me.
He said that when you insert a screw into a rib, the screw exerts pressure outward from the screw and holds by exerting that outward pressure. A rivet uses downward pressure to hold the material down and does not exert outward forces on the ribs. He claims you are more likely to crack a rib where you have drilled and inserted the screw because of the outward forces. He has been SUCCESSFULLY building hulls for nearly 30 years, so I tend to believe him. It sounded like a perfectly plausible explanation.
I posed the same question to Bill at WeldBilt, he gave the exact same answer. Those guy have made their living building aluminum boats for decades, I figure they know more than I do so I listen to their advice.
D

Makes since I suppose

[CajunChristian]

Originally Posted by Shawn Braquet

Makes since I suppose

That is why I now own an air operated rivet gun.
D