Timberland PROMen's Gladstone Electro Static Dissipative Work Shoe

Does these shoes run big or true to size? Thanks in advance.

What different between size 7.5 D(M) and 7.5 2E?

Is this item have a steel toe?

Does this shoe come in a composite safety, I have to pull off to go through a metal detector at work and it is very inconvenient