Key Unlock, Easy Installation Included. Mounting: Blind 1-1/2cc with 3/8″ lugs, tapped 10-24 x 3/8″. Powder Coated T-Handle Lock Set. This Powder Coated T-Handle Lock Set is the ideal choice. With its intuitive design that allows for easy key unlocking and straightforward installation, you can enjoy peace of mind knowing that your valuables are safe and secure.