Perfect fit for my 2018 Toyota Tacoma Trd 4x4 SUV. The thread runs through the center of each nut. I used these on my 1.5" wheel spacers that came with junk nuts.
Pros
Specifications: M12x1.5 pitch, 1.14" (29mm) height, 0.9" (23mm) width, 19mm hex, 7mm shank , long open end!