How to Fit a Long-Throw Gate Lock on a Wooden Gate
A wooden gate is often the first barrier to your garden, driveway, or side entrance, so fitting the right lock is crucial for keeping your home secure. One of the best options is a long-throw gate lock. This type of lock is designed for gates, with a key-operated cylinder on the outside and a convenient thumb turn on the inside, allowing you to lock and unlock the gate quickly without needing a key every time.
At Active Lock Centre, we fit, repair, and replace gate locks across Welwyn Garden City, Hatfield, St Albans, Stevenage, Hertford, and surrounding Hertfordshire towns. In this guide, we’ll walk you through how a long-throw lock works, the tools you need, the fitting process, and why calling a professional locksmith can save time and avoid costly mistakes.
What is a Long-Throw Gate Lock?
Unlike a simple padlock and hasp, a long-throw gate lock has:
- A key-operated cylinder on the outside for secure access
- A thumb turn on the inside for quick exit
- A long steel bolt that throws through the gate into a keep or receiver on the post
- A weatherproof case to handle outdoor conditions
These locks are designed specifically for timber gates, providing strength, durability, and convenience.
For more information about the different security options available, see our page on Lock Installations.
Why Choose a Long-Throw Lock?
- Security: Harder to force than surface bolts or padlocks
- Convenience: Thumb turn makes locking from inside easy
- Weather resistance: Usually supplied with stainless steel fixings
- Insurance: Often meets requirements for securing side entrances
Tools and Materials You Will Need
- Long-throw gate lock kit (includes lock body, cylinder, thumb turn, fixing bolts, keep plate)
- Drill with long wood drill bits (to bore through the gate)
- Screwdrivers
- Measuring tape and pencil
- Spanner or socket set (to tighten fixing bolts)
- Chisel (for tidy fitting if required)
Step-by-Step Guide to Fitting a Long-Throw Gate Lock
Step 1: Measure and Mark the Position
Mark the correct height (usually waist to chest height). Ensure there’s enough room for the bolt to throw fully into the gate post.
Step 2: Drill the Bolt Hole
Using a long drill bit, bore a clean hole right through the gate for the bolt to pass. Drill from both sides to avoid splintering.
Step 3: Fit the Lock Body
Insert the lock body into the hole, making sure the bolt throws smoothly into the receiver plate.
Step 4: Attach the Cylinder and Thumb Turn
Push the key cylinder through the gate from the outside and the thumb turn from the inside. Fix them together with the supplied screws.
Step 5: Secure with Bolts
Tighten the through-bolts using a spanner or socket. This makes the lock much stronger than surface screws alone.
Step 6: Fit the Keep or Receiver Plate
Mark the gate post where the bolt meets, then screw the keep plate securely. Ensure alignment so the bolt throws fully.
Step 7: Test and Adjust
Turn the key several times to check smooth operation. Adjust screws or keep position if necessary.
Best Uses for Long-Throw Locks
- Side gates leading to the garden
- Driveway gates
- Back garden entrances
- Pedestrian access gates near garages or sheds
They work well in residential areas across Welwyn Garden City, Hatfield, and St Albans, where side access security is often a weak point.
If you already have a gate lock that’s not working properly, see our page on Lock Repairs in Welwyn Garden City for expert help.
For further reading, the official police-backed initiative Secured by Design also offers practical guidance on choosing the right locks for gates and outdoor entrances.
Maintenance Tips
- Lubricate with graphite or silicone spray every few months
- Check fixing bolts remain tight
- Apply a weather shield if the lock is exposed
- Re-cut or treat the gate wood if swelling affects the lock
Common Problems and Fixes
- Key stiff to turn: Clean and lubricate the cylinder
- Bolt not aligning with keep: Adjust the keep plate or plane the gate edge
- Lock loose: Tighten through-bolts with a spanner
- Gate sagging: Re-hang or adjust hinges before fitting a lock
When to Call a Locksmith
Fitting a long-throw gate lock looks simple, but problems like gate warping, misaligned posts, or the wrong drill bit can cause major issues. A professional locksmith ensures:
- Clean, accurate fitting
- Correct alignment first time
- Stronger security with anti-snap cylinders (if needed)
- No damage to your gate
If you are dealing with a more urgent issue, such as being unable to secure your property, our Emergency Locksmith Welwyn Garden City service is available 24/7.
For enhanced security advice, take a look at our guide on Cylinder Snapping in Hertfordshire.
FAQs
H3: Are long-throw locks better than padlocks?
Yes, they offer stronger security, are harder to cut, and more convenient for daily use.
H3: Can long-throw locks be keyed alike with my house locks?
Yes, a locksmith can often re-key cylinders to match.
H3: Do they work on double gates?
Yes, provided the bolt has a solid receiver point, such as a second post or drop bolt.
H3: Are long-throw locks weatherproof?
Most are stainless steel or galvanised, but regular lubrication is recommended.
Why Choose Active Lock Centre
- Local and independent locksmith in Hertfordshire
- Over 40 years’ experience
- MLA approved and DBS checked
- No callout fees, transparent pricing
- 5-star reviews from customers across Welwyn Garden City, Hatfield, and beyond
📞 Call 01707 242874 to book a professional long-throw gate lock installation today.