Mortice Door Locks Explained: Sashlocks, Deadlocks and All Their Parts Names
Mortice door locks sit hidden in the edge of the door, but they do most of the hard work when it comes to security. In this guide we break down...
Bathroom Door Lock (Thumbturn) – Electro Brass (65mm Case / 45mm Backset) is backordered and will ship as soon as it is back in stock.
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A medium duty bathroom mortice lock designed for internal timber doors in domestic and commercial buildings. The latch is operated by a standard door handle, while the deadbolt is locked and unlocked using a bathroom turn with a 5mm spindle, providing reliable privacy for WC and bathroom doors. The electro brass finish offers a clean, traditional look that suits classic door furniture.
| Lock type | Bathroom mortice lock (latch + deadbolt) |
|---|---|
| Lock case depth | 65mm |
| Backset | 45mm (to follower/turn spindle) |
| Centres | 57mm (handle spindle to turn spindle) |
| Bolt throw | 13mm (approx.) |
| Faceplate size (H × W) | 152 × 22mm |
| Faceplate type | Square |
| Keep size (H × W) | 125 × 24mm |
| Case height | 102mm |
| Case thickness | 14mm |
| Operation | Latch by handle; deadbolt by bathroom turn (5mm spindle) |
| Finish | Electro brass |
| Corrosion rating | Grade 1 – clean, dry & low humidity environments |
| Fire rating | 30 & 60 minutes (when used on suitable fire doors) |
| Standards & approvals | CE marked to BS EN 12209:2003, BS EN classification 1M410F-BG10, Certifire CF5531 |
| Fixings | 4 × 4.0 × 25mm countersunk screws (recommended) |
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