Questions and Answers for First Watch Security Polished Brass Double Cylinder Interlocking Door Deadbolt

A:  We do not recommend using this item on a sliding patio door. We do sell items that are made specifically for patio doors, but this specific item shouldn't be used on a sliding door.

A:  Yes, this will work on a sliding patio door

A:  It is possible, but may cost more than this product costs. You would need to check with a locksmith for exact prices.

A:  This model is not offered in a keyed alike version.