A swage collar including a shank having a first end, a second end opposite the first end, and an outside diameter, a flange extending circumferentially from the first end of the shank and having a outer diameter, and a transition step formed at a location where the first end of the shank transitions to the flange. When the swage collar is swaged, the transition step is deformed from an undeformed state to a deformed state such that the transition step is blended with the outside diameter of the shank and the outer diameter of the flange. The transition step is substantially linear in its undeformed state and is oriented at an angle from a longitudinal axis of the swage collar. When the transition step is in its deformed state, the transition step includes a curved portion having a radius of curvature visually indicating a complete swage of the collar.