Okay, I just checked out on-line photos of both SCM0013-B and SCM0017.
Both are alligator type clips with spring-loaded jaws which clamp onto clothing or whatever, appropriate for mounting to the edge of something like a collar or hat-brim, but probably not appropriate for mounting under clothing.
SCM0013-B places the mic parallel to, and basically flat up against, the surface to which the clamp is attached. If attached to a jacket lavalier the mic faces directly upwards, downwards, or sideways when snapped into various slots in a piece attached to the upper jaw.
SCM0017 is a similar clamp, but angles the mic out away from the surface to which the clamp is attached, at what appears to be a 45 degree angle, intended to avoid the mic grid rubbing up against the fabric. I suspect the grid would protrude about a half inch or so from the fabric surface to which the clamp is attached. It looks like it is intended only for that microphone mounting position, but like the 13-B version it also has a feature on the end of the bottom clamp jaw into which the cable can be snapped to form a strain-relief loop. One could probably use that alone for a parallel to the surface mic clamping arrangement without securing a full cable loop at the clamp. That cable snap feature runs across the end of the lower jaw and is basically the same as the multiple "cable snap" slots on the top jaw of the 13-B.
Hope that helps.