Fecking around with one of the e-locker 3rds, this one came unassembled. Does anyone know what this cover is for, and if the notches need to be aligned? The cover had a 1/16" notch in it the entire length at one point on the circumference and the pin has a 1/4" notch on the face of it. Do they need to align? doesn't seem like it matters much to me, because you can just flip the cover around either way. Should there be a key in the pin or something?