Outside Diameter – 0.5625″, 7/16″-20 thread
Knurled shoulder prevents bolt from spinning in hanger bracket. Includes grease zerk and lock nut.
This bolt is drilled out with a grease zerk on the end! (Used on most trailer axles from 2000#, 3500#, 5200#, 6000# and 7000# Axles)
Keep trailer suspensions lubricated with the Greaseable Spring Bolt for mounting double eye or slipper style axle springs to hanger brackets or equalizers