Can not repair stripped screws - UTG Pro Arwen M-LOK Free Float Handguards

I bought two of the rails and fit and finish is fine. I have a number of UTG products that I am very happy with.
The instructions that came with the rails says to torque the screws to 15 inch pounds, but the on line instructions says to use 25 inch pounds. I contacted UTG by email and asked which to use. They informed me that 25"lb was correct.
One of the rails worked fine, but the second one stripped the 3 mm socket heads on the screws.
They use steel helix coils in the aluminum for the screws and they are fine. I had to press a screw driver in the screw sockets to loosen the screws to remove the rail. Once removed I noticed that by turning the screws inward that the screw and metal pad can be removed, which was a real relief. So I emailed UTG and asked if I could BUY a few of these screws for repair. I did that two times and the only response I received was asking to see a picture of the screw??
So if You happen to strip one of these screws it will render Your rail unusable because these screws are not only special but also unavailable.