MXD-14: 1/4″- 3600 lbs – .34 lbs MXD-616: 5/16″ – 4500 lbs- .64 lbs MDX-38: 3/8″- 7100 lbs – 1.01. lbs MXD-12: 1/2″ – 12000 lbs – 2.6 lbs