I am looking for a place that sells 5/8 spring buckles like pictured below.  The typical spring buckles seem to be mote geared towards use with webbing and bind up on leather when pulled, but the ones with a slanted channel by the teeth seem to work well.  The only place I can find these guys is at Batzus.  The only problem is they have a $50 minimum and that would be way more buckles than I need.  Anybody have any idea who might carry these in a smaller quantity?