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TradeBase Buying Guide
Patio bolts & mini push-bolts — secondary locks for every door and window
Two ways to add a second lock to a door or window. Patio bolts — 304 marine stainless, keyed alike, for sliding patio doors. Mini push-bolts — keyed alike, universal-fit, for any door or window. Tiered pricing on both.
Which one do you need?
💰 Tiered pricing on every listing. Patio bolts: single, twin, triple packs — all keyed alike. Mini push-bolts: single, 4-pack, 10-pack — all keyed alike, per-unit price drops dramatically on multi-packs.
1. Patio Bolt Locks — 304 stainless, keyed alike
A standard sliding door lock secures one point on the door — the centre lock. That’s it. A determined break-in attempt levering the door from the bottom corner will lift the door off the track and pop the centre lock right out of its strike. A patio bolt fits at the bottom of the door, drops a steel pin into a hole in the track, and stops that lifting motion completely. It’s the cheapest second-point security upgrade you can make on any sliding patio door.
How many do you need?
One per sliding door. Most homes need two or three: front patio, back patio, plus a courtyard or balcony. Every multi-pack is keyed alike to a single key — one key opens every patio bolt in the order. Tiered pricing applies: the per-unit cost drops sharply on the twin and triple packs.
Single — 3 keys
One sliding patio door. Three keys for spare-key spread. Single Patio Bolt Black
Twin pack — 6 keys, keyed alike
Two sliding doors (front + back patio). All on one key. Twin Pack
Triple pack — 9 keys, keyed alike
Three or more sliding doors. Best per-unit price. Triple Pack
Dimensions & how it works
Why 304 stainless steel matters
Patio bolts live at floor level on doors that face directly onto the elements. The bolt drops into a hole in the track which collects water, leaves and dirt. A standard zinc-plated bolt corrodes in 2–3 years on exposed doors and seizes inside the housing. TradeBase patio bolts are 304 marine-grade stainless steel — the same grade used on coastal hardware. They don’t seize, don’t streak rust down the door, and don’t fail in the salt-spray zones where standard bolts give up.
Patio bolt brand compatibility
TradeBase patio bolts fit any standard Australian sliding patio door — the bolt body screws to the inside face of the door at floor level and the strike is a small hole drilled in the track. Compatible with all major brands including Whitco®, Lockwood®, Stegbar®, A&L®, Bradnam’s®, Wideline® and Dowell®. The 304 stainless construction means the same bolt fits inland and coastal homes.
2. Mini Push-Bolts — the universal door & window lock
Mini push-bolts solve a problem proper window and door locks don’t: you need a simple, fast, keyed lock that just stays out of the way until you need it. French doors that want to stay shut against a breeze. Sash windows where you want a child-safety stop. Screen doors that drift open. Pet doors. Caravans. Sheds. Each pack is keyed alike — multi-packs share a single key so one key opens every bolt in the order.
What it does & doesn’t do
- Keyed alike — multi-packs share a single key, so one key opens every bolt in the order
- Universal fit — works on doors and windows of any type, any frame material
- Compact — under 60 mm long, sits flush against the frame
- Spring-loaded — bolt re-engages automatically when the door closes
Mini push-bolts are a keyed second-point lock — child-safety, convenience and a security deterrent. For heavy forced-entry security on screen doors see the security door lock buying guide; for sliding patios use the patio bolt section above.
Choose colour and quantity — tiered pricing
Silver Grey
Mini push-bolt scenarios
- French doors that want to stay shut — one bolt at the top, optionally one at the bottom
- Child-safety on sash windows — bolt acts as a restrictor
- Sliding screen doors that drift open — quick-fit bolt holds the screen closed
- Caravans, sheds, granny flats — cheap basic locking
- Property managers — 10-pack stocks every door and window in a unit, all keyed alike on one master key
Patio bolt vs mini push-bolt — quick reference
| Patio Bolt | Mini Push-Bolt | |
|---|---|---|
| Use case | Sliding patio door, second-point lock | French doors, sash windows, screen doors, caravans |
| Keyed? | Yes — cylinder + 3 keys per pack | Yes — keyed alike across the pack |
| Material | 304 marine-grade stainless steel | Polymer body, metal bolt |
| Body length | 156 mm | Under 60 mm |
| Pack sizes | Single, twin, triple — all keyed alike | Single, 4-pack, 10-pack — all keyed alike |
| Colours | Black | White, black, silver grey |
| Stops forced entry? | Yes — second-point security | Deterrent + child-safety / convenience |
| Keyed alike across packs? | Yes | Yes |
Installation
Patio bolt: 15-minute job per door with a Phillips-head screwdriver and a 6 mm masonry/metal drill bit. Screw the bolt body to the inside of the door near the bottom corner. Slide the door closed, mark where the bolt drops, drill a hole in the track. Test by raising and lowering the bolt with the key.
Mini push-bolt: 5-minute job. Two screws on the door/window, two screws on the strike plate at the frame. Test by closing the door and turning the key.
Strata, builders, locksmiths, property services & maintenance — bulk pricing
Apartment block? Triple-pack patio bolts ship keyed alike across the entire order — one master key opens every patio door. Mini push-bolt 10-packs ship keyed alike too — one key for every internal door, sash window and screen door in a unit.
What it gets called — the same part, different names
Locksmiths, glaziers, builders and the hardware aisle all use different words for the same part. This is the translation.
| What we call it | Also known as |
|---|---|
| Patio bolt | Patio door bolt, sliding door bolt, patio lock, sliding door security lock, auxiliary patio lock, secondary sliding door lock, patio door lock |
| Bolt | Locking pin, shoot bolt, drop bolt, deadbolt pin, throw bolt, lock pin |
| Keeper | Strike, strike plate, receiver, keeper plate, catch plate, bolt hole |
| Push lock | Snap lock, press lock, one-touch lock, push-button bolt |
| Keyed alike | Same key, common key, KA, one key fits all |
| Twin pack | Pair, 2-pack, double pack |
| 316 stainless | Marine grade stainless, A4 stainless, marine 316 |
| 304 stainless | Commercial grade stainless, A2 stainless |
| Sliding door | Slider, patio door, stacker door, glass slider, courtyard door |
| Track | Sill track, bottom track, runner, channel |
A patio bolt is a secondary lock, not a replacement for the main sliding door lock. It pins the sliding panel to the frame or to the fixed panel, so the door cannot be lifted out of its track or slid open even if the primary lock is defeated. If the main lock has failed, a patio bolt is not the fix — sort the sliding door lock first.
316 versus 304 stainless. Within about a kilometre of surf, or in any salt-spray environment, specify 316 — 304 will tea-stain and eventually pit. Inland and undercover, 304 is fine and cheaper. This is the single most common regret on this category.
Still not sure?
Email a photo of the door or window with the existing locks (if any) to sales@tradebaseaustralia.com.au. We’ll confirm which bolt fits and recommend the matching main door lock if needed. Or browse the full patio bolt range. Every other TradeBase guide is in the buying guides hub.
Patio bolt and mini push-bolt FAQ
A patio bolt is a 304 marine-grade stainless second-point lock for sliding patio doors, while a mini push-bolt is a compact keyed bolt that suits almost any other door or window. The patio bolt fits at the bottom of the sliding door and drops a steel pin into a hole drilled in the track, which stops the door being levered off its runners. The mini push-bolt suits French doors, sash windows, screen doors, caravans and sheds, and is often fitted as a child-safety restrictor. Both are keyed, and every multi-pack is keyed alike.
The patio bolt body is 156 mm long by 49 mm wide with a 9.5 mm bolt diameter, so you need a clear flat run of about 160 mm on the inside face of the door near the bottom corner. The mini push-bolt is far smaller at under 60 mm long and sits flush against the frame, which is why it fits narrow window sashes and screen door stiles. Measure the flat area on the door or sash before ordering, and if you are unsure, email a photo to sales@tradebaseaustralia.com.au.
Yes, TradeBase patio bolts fit any standard Australian sliding patio door, including Whitco®, Lockwood®, Stegbar®, Bradnam’s®, Wideline® and Dowell®. There is no brand-specific mounting pattern to match, because the bolt body simply screws to the inside face of the door at floor level and the strike is a small hole drilled in the track. That makes it a universal retrofit rather than a like-for-like replacement part, so it works on timber and aluminium doors alike. The mini push-bolt is universal-fit too and works on any frame material.
Yes, within about a kilometre of surf or anywhere exposed to salt spray you should specify 316 stainless rather than 304. TradeBase patio bolts are 304 marine-grade stainless, which is fine inland and undercover but will tea-stain and eventually pit in a true salt-spray zone. Either grade still beats a zinc-plated bolt, which corrodes in two to three years on an exposed door and seizes inside its housing. Choosing the wrong grade is the single most common regret in this category, so check your distance from the surf first.
Yes, a patio bolt is about a 15-minute job per door with a Phillips-head screwdriver and a 6 mm masonry or metal drill bit. Screw the bolt body to the inside of the door near the bottom corner, slide the door closed, mark where the bolt drops, drill the hole in the track, then test by raising and lowering the bolt with the key. A mini push-bolt is quicker again at around five minutes: two screws into the door or window and two into the strike plate on the frame.
Yes, every TradeBase multi-pack is keyed alike, so one key opens every bolt in the order. Patio bolts come as a single with three keys, a twin pack with six keys, or a triple pack with nine keys, all cut to the one key. Mini push-bolts come as a single, a 4-pack or a 10-pack, again keyed alike across the pack. Tiered pricing applies to both ranges, so the per-unit cost drops sharply as the pack size goes up.
Yes, tiered pricing applies to every listing and trade buyers can apply for bulk pricing through TradeBase trade and business membership. On an apartment block, triple-pack patio bolts ship keyed alike across the whole order, so one master key opens every patio door on site. A mini push-bolt 10-pack does the same job internally, covering every door, sash window and screen door in a unit on a single key. Strata managers, builders, locksmiths, property services and maintenance contractors are the usual buyers at this volume.