* - This is an improved design over past models, where a 3/32 spring pin, a M2.5 screw, and a fully-threaded #4-40 screw have been used. We are choosing to use a screw in this location as opposed to a spring pin in order for the screw to be removed or installed easily. The new screw has a non-threaded body so it is stronger than previous screws used which had threads (and therefore less cross-sectional area) along the length of the body.
Small Dog Gears 
