Fixing canvas snaps

B

b_arrington

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18340
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What's an effective way to fix screw-in canvas snap studs?

I have a couple male snaps on the boat where the threads don't bite into the fiberglass. Last year I tried some 4200 on the snap threads and the head. That didn't hold long.

Saturday, I tried to do it "right". I drilled out the holes a bit, masked them w/ blue tape, filled with some JB Weld epoxy putty, let cure, drilled a pilot hole, then screwed in the stud. Results: no grip. The studs just spin and won't tighten down.

I can't figure it out what I did wrong. Help!
 
Brad, if you can access back side, replace male snap with machine threaded stud & place washer & nut on it.
They do make a sltly larger diameter wood screw diameter if the hole is not too large already.
 
try putting the snap in while the jb weld is soft.
 
Lock tite makes a putty, I think it is red.
I used that once and this thing was never coming out.
 
I don't think I have access to the back side. The snaps are in the side of the cockpit in a very tight area, but I'll check.

Maybe the soft JB weld is the answer. The epoxy stick I got is very fast setting - open time is only 2 minutes; set full cure time is 20. I'll have to work really fast to do it. When I put the screws in the epoxy felt like it crumbled.
 
I use Marine Tex. Push some into the hole and a little around outside of the hole. Put some around the threads of the snap and insert snap into the hole. Clean around the snap with gasoline and a rag before it dries.
 
I use Marinetex also and drill out smaller than the screw. I bet you drilled too large a hole. 4200 and even 5200 won't work because it never really hardens.
 
Try inserting a piece of a toothpick into the hole then screw the stud unless you want ot make a project out of it.
 
I used JB Weld for a couple of screw holes that were stripped. Worked great. I used the 2 part product which is fairly thin when mixed and applied it with a toothpick. It tends to run out of the hole until it starts to setup. At that point, it's thick enough to stay in place.
 
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