The screws DO have T10 Torx heads. There's just a tamper stick on top of the screws now hiding it. There's no need to wreck the screws and the bracket (which apparently you did) with any kind of brute force with needle nose pliers. All you have to do is use the T10 screw driver and apply pressure to the middle of the "blank" screw. The T10 screw slot will reveal itself when you apply enough pressure, and then you can simply screw them out. You can definitely re-use the screws afterwards. It's just a stupid black tamper stick that they stuck on top of the T10 torx screw. So definitely do NOT listen to Jon Spinella's advice and wreck your screws and bracket.