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TradeBase Buying Guide
Choose the right security door lock in 60 seconds
Six questions, one lock. Hinged or sliding, with or without cylinder, 4-pin or 5-pin commercial security, six COLORBOND®-matched colours. Tiered pricing on every listing — buy more, save more.
Replacing a security screen door lock should be a fifteen-minute job, but it never feels that way the first time. The hinged-versus-sliding distinction is obvious. The cylinder configuration isn’t — do you need a complete kit, or just the body, or do you reuse your existing cylinder so the same key still works? And which security level: standard wafer, 4-pin residential, or 5-pin commercial? This guide walks you through every decision in the right order so you end up with one product. If you already know what you need, jump straight to our full security door lock range.
💰 Tiered pricing on every listing. Whether it’s a single lock, a 4-pack of cylinders, or a 10-pack — the more you order, the lower the per-unit cost. Multi-pack cylinders ship keyed alike. Trade and strata get even better set rates — email sales@tradebaseaustralia.com.au.
The 60-second decision
- Hinged or sliding door? The lock body is completely different.
- Complete kit or just the body? With cylinder + 3 keys, without cylinder, or snib-only.
- Security level? Double-wafer standard, 4-pin residential, or 5-pin commercial higher-security.
- Hand (hinged only)? Left or right, determined from outside the door.
- Colour? White, black, brown, silver, Primrose® or Paperbark®.
- How many? Single, twin or 5/10-pack cylinders — all multi-pack security door cylinders keyed alike.
1. Hinged or sliding door?
Hinged door lock
Door swings open on side hinges
- Most front and rear security doors
- Lock body is left or right handed
- Snib on the inside, key on the outside
- Often paired with a pneumatic door closer
Sliding door lock
Door slides sideways on tracks
- Patio doors, courtyard doors, balcony screens
- No left/right hand — same body fits either side
- Hook-bolt mechanism engages the strike
- Often paired with a patio bolt for two-point locking
Hinged: White Hinged Cylinder + 3 Keys · Black Hinged Cylinder + 3 Keys. Sliding: White Sliding · Black Sliding.
2. Complete kit, body only, or snib only?
With cylinder + 3 keys
- Lock body, cylinder and 3 keys included
- Multi-packs all keyed alike to one key
- Choose for first-time installs or full replacements
Without cylinder — reuse yours
- Just the lock body, no cylinder
- Keep your existing key system
- Choose when the lock body is broken but the cylinder still works
Snib only / non-keyed
- Lockable from inside via snib
- Lowest-cost option
- Choose for low-risk locations
🔑 All your security door locks on one key. When you order multiple TradeBase security door lock cylinders — for the front door, back door, side gate or garage screen — every cylinder ships keyed alike to a single key. The 4-pin and 5-pin C4 cylinder bulk packs (twin, 5-pack, 10-pack) all run on the same key. Note: TradeBase window winders, window locks and patio bolts use their own separate keying systems — they aren’t cross-keyed with the security door cylinder range.
3. Security level — cylinder choice
Cylinders are the security-determining part of the lock. The body is the same; the cylinder determines pick-resistance, key copy difficulty, and rating. Every cylinder listing has tiered pricing — single, twin-pack, 5-pack and 10-pack — per-unit price drops dramatically with bulk packs.
Cylinder bulk packs — tiered pricing, all keyed alike: twin-pack, 5-pack and 10-pack. The 10-pack is the cheapest way to re-key a whole house — one key opens every door.
4. Hinged door — left hand or right hand?
Sliding door locks are not handed. Hinged locks are. Stand outside the door looking at it. Hinges on the left = left-hand door. Hinges on the right = right-hand door. Replacing an existing lock? Look at the old one before ordering — the handle and key barrel sit on the opposite side of the body from the bolt.
5. Match the colour to your door frame
Security screen door locks are visible hardware — matching the body colour to the door frame keeps the install looking factory-fresh. TradeBase carries six COLORBOND®-matched options across the hinged range:
6. Tiered pricing on every listing
Every TradeBase listing — locks, cylinders, multi-packs, accessories — uses tiered pricing. Buy one for the standard price; buy four, ten, or twenty and the per-unit cost drops in steps. Multi-pack cylinders ship keyed alike, the cheapest way to re-key a property.
Locksmiths, strata managers, fitters — set trade pricing
Send your typical monthly volume. We’ll come back inside 24 hours with a set rate, every cylinder order keyed alike, plus priority dispatch.
Brand compatibility
- Whitco® — including the Tasman MK1 and Leichhardt® hinged screen door lock series. 4-pin C4 cylinder profile matches the original CYL4® keyed-alike system.
- Lockwood® — 8654 series and equivalent screen door deadlocks
- Doric®, Austral®, Brava®, Magic®
- Yale® screen door range · Schlage® hinged screen door deadbolts
What it gets called — the same part, different names
Locksmiths, screen fabricators, manufacturers and the hardware aisle all use different words for the same part. If you learned on one system and are buying against another, this is the translation:
| What we call it | Also known as |
|---|---|
| Security door lock | Security screen door lock, barrier door lock, screen door lock, screen door deadlock, mortice lock, security door mortice, screen door deadbolt |
| Cylinder | Barrel, key barrel, lock barrel, cylinder barrel, lock cylinder, C4 cylinder, key cylinder |
| Snib | Thumb turn, turn snib, internal latch, inside catch, indicator snib |
| Strike | Strike plate, keeper, receiver, striker, keep |
| Tri-point lock | Three-point lock, 3-point locking, multi-point lock, remote locking kit, shootbolt kit |
| Spring roller | Screen door roller, screen door wheel, sliding door wheel, track roller, bogie |
| Door closer | Pneumatic closer, self-closer, gas closer, door dampener, closer arm |
| Lock guard | Lock shield, jemmy guard, anti-jemmy plate, lock protector |
| Hinged / sliding | Swing door / slider, side-hung / sliding screen |
Two things that are not the same, and the most common mis-buy on this category: a security door lock is a keyed, AS 5039-grade lock fitted to a steel or aluminium security screen door. A flyscreen door latch is a light spring catch for an ordinary insect screen door — no key, no security rating, a fraction of the price. If the door it’s going on is a plain flyscreen door, you want the latch, not the lock. And a deadlock throws a solid bolt that must be keyed open; a latch springs closed and opens from inside by hand — check which your door actually has before ordering.
Accessories — what else fits the door
The lock is just one part. Here’s everything else that goes on a security screen door — closers, hinges, lock guards, three-point kits, the spring rollers that run sliding screen doors, and the simple flyscreen latch for non-security doors.
Security door spring rollers
Spring-loaded replacement rollers for sliding security screen doors. The little wheels that run along the bottom track — when one fails, the door drags. Single · 4-pack · 10-pack · 20-pack · 50-pack · 100-pack. Tiered pricing — locksmith bulk rates.
Spring flyscreen door latch
Hinged handle latch for spring-style flyscreen doors on timber and aluminium frames. Different product from a security door lock — this is for basic flyscreen doors that just need a working catch. Black Spring Flyscreen Latch
Lock components & spares
Replacement snibs, strikes, screws and small parts for the TradeBase hinged lock body. Browse the full range or email a photo of the broken part for a one-reply match.
Common scenarios
| Scenario | What you need | Example product |
|---|---|---|
| Front hinged security door, white frame | Hinged, white, with cylinder + 3 keys, 4-pin | White Hinged 4-Pin Kit |
| Higher-security front door | Hinged, 5-pin commercial cylinder | 5-Pin Commercial Hinged |
| Lock body broken, cylinder still works | Hinged body only, no cylinder | Hinged Without Cylinder |
| Sliding patio screen door, black | Sliding, black, with cylinder + 3 keys | Black Sliding Kit |
| Sliding screen door dragging on track | Spring roller wheels — 4 or 10-pack | 10-Pack Spring Rollers |
| Heritage cream-frame door | Hinged, Primrose® or Paperbark® | Paperbark® Hinged Kit |
| Re-key whole house, same key | 5 or 10-pack cylinders, all keyed alike | 5-Pack Cylinders |
| Sliding patio + bolt for two-point lock | Sliding lock + patio bolt twin pack | Patio Bolt Twin Pack |
| Maximum-security front door upgrade | Hinged kit + tri-point + lock guard | Tri-Point Lock Kit |
| Basic flyscreen door catch (not security) | Spring flyscreen door latch | Spring Flyscreen Latch |
| Apartment block / commercial fitout | Bulk cylinder pack, set trade pricing | Email sales@tradebaseaustralia.com.au |
Compliance — AS 5039 / 5040 / 5041
Security screen doors fitted to Australian residential properties are governed by three Australian Standards. AS 5039 covers the security screen door itself, AS 5040 covers installation, and AS 5041 covers the test methods. Standard wafer cylinders typically don’t meet AS 5039 dynamic-impact requirements, so for genuinely compliant security screen doors specify a 4-pin C4 or 5-pin commercial cylinder paired with a lock guard. If the door needs to be insurance-rated, check that all three components — lock body, cylinder, and guard — are stated as compliant on the original supplier paperwork.
Installation
Replacing a security screen door lock takes about 15–20 minutes per door with a Phillips-head screwdriver and a 5 mm Allen key. Two screws hold the lock body to the inside of the door, the cylinder unscrews from the outside via a single screw on the lock face. If your existing lock has been jammed or forced, also inspect the strike plate — bend it back into shape or replace it before fitting the new lock. Spring rollers swap out by lifting the door off the track and pressing the old roller out of the carriage — a 5-minute fix.
Still not sure?
Take a photo of the existing lock from outside the door and email it to sales@tradebaseaustralia.com.au with the door colour and approximate measurements. We’ll match you to the correct TradeBase replacement in one reply. Or browse the full security door lock range. Every TradeBase guide is listed on the Buying Guides hub.
Commercial or shopfront door? Aluminium shopfront doors use narrow stile, wide stile or swing bolt mortice locks rather than security screen door locks — see the Commercial & Shopfront Door Hardware Buying Guide. For the mesh itself, see the Security Door Mesh Buying Guide.
Shop by brand
We stock replacement security screen door locks and hardware to suit Whitco®, Stegbar®, Dowell®. Each brand page lists every compatible part and what to measure before ordering. See all replacement hardware by brand.
Security screen door lock FAQ
Stand outside the door and look at it — hinges on the left means a left hand door, hinges on the right means a right hand door. Only hinged locks are handed; sliding security door locks are not, so the same body fits either side. If you are replacing an existing lock, check the old one before you order: the handle and key barrel sit on the opposite side of the body from the bolt.
Buy the kit with cylinder and 3 keys for a first-time install or a full replacement, the body without a cylinder when the lock body is broken but your existing cylinder still works, and the snib only non-keyed body for low-risk doors that just need locking from inside. Reusing your own cylinder keeps the same key working. Hinged locks come in six COLORBOND®-matched colours — white, black, brown, silver, Primrose® and Paperbark® — so the body matches the door frame.
Yes. The TradeBase hinged range replaces most Whitco® screen door locks, including the Tasman MK1 and Leichhardt® hinged screen door lock series, and the 4-pin C4 cylinder profile matches the original CYL4® keyed-alike system. It also suits Lockwood® 8654 series and equivalent screen door deadlocks, plus Doric®, Austral®, Brava® and Magic® locks, the Yale® screen door range and Schlage® hinged screen door deadbolts. If you are not sure, email a photo of the old lock before ordering.
Choose the 4-pin C4 cylinder for most Australian homes, the 5-pin commercial cylinder where you want higher pick-resistance and keys that are harder to copy, and the double wafer standard only for low-risk locations. The lock body is the same in every case; the cylinder is the part that determines pick-resistance, key copy difficulty and rating. That means the security level is set by the cylinder you order rather than by the lock body itself.
Specify a 4-pin C4 or 5-pin commercial cylinder paired with a lock guard, because standard wafer cylinders typically do not meet the AS 5039 dynamic-impact requirements. Three Australian Standards apply to residential security screen doors: AS 5039 covers the door itself, AS 5040 covers installation and AS 5041 covers the test methods. If the door has to be insurance-rated, check that the lock body, cylinder and guard are all stated as compliant on the original supplier paperwork.
About 15 to 20 minutes per door with a Phillips-head screwdriver and a 5 mm Allen key. Two screws hold the lock body to the inside of the door, and the cylinder unscrews from the outside through a single screw on the lock face. If the old lock has been jammed or forced, inspect the strike plate as well and bend it back into shape or replace it before fitting the new lock. Sliding door spring rollers are a separate five-minute job.
Yes. Every TradeBase listing uses tiered pricing, so the per-unit cost drops in steps as the quantity rises — one at the standard price, or four, ten or twenty for less each across locks, cylinders, multi-packs and accessories. Multi-pack cylinders ship keyed alike, so one key opens the front door, back door, side gate and garage screen. Locksmiths, strata managers and fitters can send their typical monthly volume for a set rate, with a reply inside 24 hours and priority dispatch.