recommendations for alternatives for plastic pegs to hold screws?

I have a Scotts HandyGreen II fertilizer spreader made of plastic. 20 years old : )

Works OK, but wanted to clean it. Taking it apart, some of the rusted screws snapped off the plastic pegs / extensions that they woudl screw into to hold it together.

Any recommendations for a material that would bond well to the plastic, allow a screw to go into it and not shatter, and not soft enough to allow too much moveemnt. I guess a liquid plastic? But what's that called? I envision filling the corners up with the material, let it harden and then screw into it.

a) any specific materials you think would be good?
b) predrill the material before screwing in?

THANKS!

 

I'd probably just glue the same pieces back on with a 5 minute epoxy. Give it plenty of time to cure before you put the screws to it.

 

The problem with plastic is that it's chemical make up doesn't allow glue to work very well.

Make sure the joint is clean and try one of the Gorilla Glues and when it's cured drill a pilot hole all the way down below the glued boss and install slightly longer screws (stainless steel) that way your glued joint will have some support.

 

I would put epoxy in the screw holes and assemble it while the glue is still liquid.

 

Thanks. I started with Xsleeper's recommendation. There's 2 of these pegs. 1 is cracked, 1 is still solid. In both cases, it became a mess for me trying to do anything. I wound up filling up the area where the peg goes with epoxy, with the peg in the soup (I;d never get the peg to stay in the exact spot it was anyway).

I'll let that cure and drill holes before screwing it back together.

THANKS!

 

Drill and tap your holes if possible. If using something similar to a wood screw use a large pilot hole. The epoxy to plastic bond isn't great. You don't want the screw trying to expand the hole to break anything free.

 

Hard to tell without actually being there.
If possible I would use rawl plugs.