Yale’s 350 Series Mortise Deadlock is a heavy-duty mortise deadlock that provides the ultimate security. Available in a range of functions, you can expect the highest quality and dependable security from this product.

Features

• UL/cUL listed for use on 3 hour fire doors
• Non-handed and easily field reversible
• Easy-to-use thumbturn or double cylinder function available
• 2-3/4″ backset