If there was ever a plow with connecting pins it is the Fisher Plow. Just about every size and length is used on these plows. We start with 3/4" diameter pins, then jump to 1" diameter with lengths from 3-1/2" to 16". We also have a center pin for the V-plow and a step pin that starts at 3/4" and steps up to 1". Included and sold separately are the cotter pins and retaining pins. Some of the OEM numbers these replace are: 5523, 6814, 7903K, 7950K, 26060, 20988. 5150, 5142 and 27177K.