C. Sherman Johnson Handy Lock Turnbuckle Jaw/Jaw [01-110]Handy Lock Turnbuckle Jaw Jaw The 01 Series Handy Lock turnbuckle is one of our oldest products and still stands the test of time. Neat and compact and positively locked without cotter pins or check nuts, the Handy Lock has all the features needed for easy adjustment in a compact package. There are no sharp points to catch lines or tear sails, just flip the lever up to adjust and down to lock. Use the Handy Lock anywhere an easily adjusted turnbuckle