Yeah sure should be. I put a six sided 31mm to it, which is 1.22", still loose. 1-3/16", or 1.1875" will not even try to go on.11/16" Whitworth is 1.200. It's a whitworth bolt.
Actually it's in Substance Painter. None of this is real, go home.
So my new top end, roller lifters, rockers...