How to Install a Tube Latch in a Rebated Door Tutorial Video by Tradco - YouTube
0.5" (13mm) Lock Rebate Conversion Set for Rebated Double Doors
St Locks - Old union 2 lever fixed rebate locks for double doors offer little protection but are still very common. Upgraded this one on a pair of garage doors this morning
Legge No. 41 Rebate Set 13mm PB - Door Lock Replacement Parts - Amazon.com
ERA FORTRESS BS3621 5L Mortice Door lock Easy reverse - 2.5"/3.0" Rebate option | eBay
Legge 5 Lever Lock Rebate Kit - Polished Chrome | IronmongeryDirect | Same Day Despatch
Nidus Mortice Lock Universal Rebate Kit - Elegant Building Supplies
Smith & Locke Rebate Set 13mm Satin Stainless Steel | Face Plates | Screwfix.com