Which will strip first, a stainless steal insert, or a Aluminium s***w?

Question

I have been thinking about purchasing a drill and tap set to repair 10-32 threads. It would be to repair paintball maker frames and bodies which have been stripped out by torquing the fittings to much. What I want to know is, when the idiot who stripped the threads the first time decides to over torque the s***w/ fitting again, will the s***w strip out first, or the insert?

Also, what is the best brand or type of thread inserts? I know there are a lot out there but I do not know the differences.

Answer 1

If you s***w an aluminum s***w into a steel insert or nut and you torque it too much, the aluminum s***w will strip. Aluminum is much softer than steel. Aluminum is so soft and has such a weak shear strength if may be difficult to find aluminum screws.

For inserts, go to http://www.mcmaster.com/, and put threaded insert in the search box. Then click on Helical under type. Under "Helical Type —", you can click "Helical Insert Installation Instructions" to see how they work. Either the Standard or the s***w Lock will do what you want.

If you're going to use a stainless steel s***w, use the Antiseizing 18-8 Stainless Steel insert. (s******g a ss s***w into ss material causes them to bind together and gall. Either use the antiseize insert or make sude you lube the threads before you s***w it together.)

McMaster Carr is a very good company to work with. When I order from them, if I place the order before 11AM it is delivered by about 4:30 that afternoon. Their prices are very reasonable, as are their shipping charges.

Good luck