Schlage Bell Bright Brass Entry Door Knob 1-3/4 in.

Keep your home safe with the Schlage Bell Entry Knob, which locks and unlocks from the inside with a turn button or the outside with a key. The knob fits most residential doors from 1-3/8 to 1-3/4 inch thick and offers a lifetime finish. The knob is easy to install is just 3 simple steps. they offer lock rekeying with any of the locksets they sell and can even rekey your existing household locks. A small price to pay for comfort and security.