NOT KNOWN FACTUAL STATEMENTS ABOUT SCREWS

There are two kinds of hex screws: An Allen screw includes a hexagonal indent in The top, necessitating an Allen wrench, and another variety has no indent while in the hexagonal head and need to be used or taken off that has a socket wrench.You cannot make use of a pozi driver with a Philips drive screw, and You can't utilize a Philips driver with