There is a crazy variety in skateboard hardware. The screws can have Philips heads, hex heads, square heads, or even nothing at all, just small bumps so you can use only your thumb. Skateboard hardware screws come in different lengths, and are often colored so that the skateboarder can put a different color of screw in the front. This is so the skateboarder can tell easily which end is the nose and which is the tail. This is only a small part of the variety of skateboarding hardware out there - for example, Sk8nuts skateboarding hardware is extremely unique - take a look at this review.
The truth is, however, that locknuts and screws can be bought at any hardware store and will likely work just fine. I used cheap hardware for my skateboard for a long time. But then, of course, I wanted something just a little cooler...
