Aptus2 - 72mm Contract lockcases UNION's new modular range of 72mm centre, Euro-profile mortice lock cases are specifically designed for the contract market, being quick and easy to install with an easily reversible latch and single piece forend. 2B21 - Euro Profile Mortice Sashlock 2B22 - Euro Profile Mortice Deadlock 2B23 - Euro Profile Mortice Latch 2B27 - Euro Profile Mortice Bathroom Lock