Justin Original Work Boots U.S.A. Men's J-Max 11" Pull-On Boot,Rugged Bay Gaucho,9 D US

My 11.5 R combat boots fit nicely, generally though I need a wide size. No 11.5 R, so I put 11.5 2E in my wish list. How close is 11..52E to 11.5R?

What does" pn" stand for

Is this the 4440 style?

are these steel toe?