This T-locking handle is constructed from zinc diecast and comes in a chrome plated finish. It features a 5/16 inch x 5-4/8 inch square shaft with an overall length of 6-3/8 inch from top of handle to end of shaft. The mounting hole centers are spaced apart at 1-1/2 inch from center to center and fasten through the inside of the door. The handle of this item measures 4 inch long and rotates 180 degrees. These types of keyed T-locking handle sets replace many garage door, camper and recreational vehicle locking handles and they are used by many manufacturers. This item uses ILCO 1098M, EZ set B-1 key blanks.