Door Bolts for Reliable Security and Control

Keep your doors securely fastened with our comprehensive range of door bolts, designed for both residential and commercial applications across Brisbane, Queensland, New South Wales and Australia-wide. Whether you need a simple barrel bolt for an internal door, a heavy-duty patio bolt for an external sliding door, or flush bolts for elegant double doors, you can buy door bolts online with confidence from John Barnes Group. Our range is curated to complement modern architectural door hardware in a variety of finishes, including matte black, stainless steel, brass and more.

Secure Every Door in Your Property

Front and External Door Bolts

Your front and external doors are the first line of defence for your home or business. A quality door bolt adds an extra layer of protection alongside your primary lockset. External door bolts are ideal for hinged entry doors, side access doors, and back doors that need dependable locking when the property is unattended. Paired with robust Lockwood or Dormakaba locking solutions, a well-chosen bolt helps deter forced entry and gives you peace of mind, day and night.

Internal Door and Privacy Bolts

Bolts are not only for high-security areas. Simple internal door bolts are perfect for bathrooms, bedrooms, storerooms and staff areas where privacy or restricted access is important. Compact barrel bolts or surface-mounted privacy bolts provide an easy way to secure a door from the inside without the complexity of a full lockset. For homes in Brisbane and offices across Queensland and New South Wales, they offer a straightforward way to control access within your building.

Commercial and High-Traffic Applications

In commercial environments, bolts are often used to secure plant rooms, stock areas, loading bay doors and emergency exits (where compliant). Heavy-duty tower bolts and security bolts provide reliable holding force for doors that are frequently used, exposed to the elements, or subject to vibration and impact. When paired with quality architectural door hardware from brands such as Dormakaba, Lockwood, Barben and Zanda, you get a cohesive, professional finish that stands up to everyday use.

Types of Door Bolts You Can Buy Online

Barrel and Tower Bolts

Barrel bolts (sometimes called tower bolts) are the classic choice for internal and external doors. They feature a sliding bolt that engages into a strike or keep, and are simple to operate and install. Available in a range of sizes, they can be used on standard hinged doors, gates and cupboards. For extra strength, look for longer bolts and robust screw fixings, particularly on external or high-use doors.

Flush Bolts for Double Doors

Flush bolts are a popular solution for double doors, French doors and taller architectural doors. Installed into the top and/or bottom edge of the inactive leaf, these bolts keep one door securely fixed in place while allowing the other to operate as usual. This is ideal for large openings in living areas, meeting rooms and commercial entries. Sleek flush bolts in matte black, brushed stainless or satin brass pair beautifully with contemporary Barben and Zanda handles and hinges, delivering a clean, architectural look.

Security Bolts and Patio Bolts

Security bolts and patio bolts are designed for situations where you need more holding power and tamper resistance. Commonly used on sliding doors, patio doors and some hinged doors, these bolts typically offer key-locking options for added security. When locked, the bolt helps prevent the door from being lifted or forced off its track, making them a smart choice for ground-level openings and vulnerable access points around the home or workplace.

Specialised and Gate Bolts

For gates, service doors and ancillary openings, specialised bolts provide robust, easy-to-use latching. From simple surface bolts to heavier gate bolts, you can choose options that suit timber, steel or aluminium frames. Matching your gate bolts with complementary Lockwood or Dormakaba padlocks and latches ensures a cohesive, secure solution for outdoor areas, courtyards and service yards.

Finishes and Styles to Match Your Architectural Hardware

Modern and Contemporary Finishes

Today’s architectural door hardware is as much about design as it is about function. That is why our range of door bolts includes popular finishes like matte black, brushed stainless steel and satin chrome, ideal for modern and contemporary homes and commercial spaces. A sleek matte black bolt can blend seamlessly with minimalist Zanda or Barben door furniture, while stainless steel options are perfect for coastal or high-humidity environments where corrosion resistance is important.

Classic Brass and Traditional Looks

For traditional homes, heritage restorations or character Queenslanders, brass and classic metallic finishes are a timeless choice. Brass bolts coordinate beautifully with period-style Lockwood knobs, levers and door knockers. Whether you’re updating a classic timber entry door in Brisbane or preserving the charm of a heritage building in regional New South Wales, you can find a bolt finish that respects the original aesthetic while delivering modern reliability.

Coordinated Architectural Door Hardware

A well-resolved door set feels cohesive from top to bottom. When you choose bolts that match or complement your hinges, levers, escutcheons and accessories from brands like Barben, Dormakaba, Lockwood and Zanda, you create a unified architectural look throughout your project. This is especially important in high-end residential builds, boutique commercial fitouts and multi-residential developments where consistent finishes and quality hardware are expected.

Choosing the Right Bolt for Your Door

Consider the Door Location and Use

Start by thinking about where the bolt will be used and how often the door operates. External doors and high-traffic commercial doors generally require stronger, more durable bolts than light-duty internal doors. Sliding patio doors benefit from lockable patio bolts, while double doors often perform best with top and bottom flush bolts on the inactive leaf. For internal privacy, a simple barrel bolt is often sufficient.

Match the Bolt to the Door Material

Different door constructions call for different fixing approaches. Solid timber doors will comfortably take a range of surface-mounted or morticed bolts. Aluminium and steel doors may require specific fasteners or bolt designs, particularly in commercial settings. If you are unsure, it is always best to consult your installer or hardware specifier to ensure the bolt you choose suits the door construction and frame type.

Think About Ease of Use and Accessibility

In both residential and commercial environments, ease of operation is important. Consider who will be using the door and how frequently. For example, a tall flush bolt may be ideal for upper fixing on a double door, but if access is needed by children or people with limited reach, you may choose a lever-operated or lower-positioned bolt instead. Simple sliding barrel bolts are easy to operate for most users and are a common choice for bathrooms and bedrooms.

Bolts for Projects Across Brisbane, Queensland, NSW and Australia-Wide

John Barnes Group supports projects of all sizes, from home renovations in Brisbane to large-scale commercial developments across Queensland, New South Wales and Australia-wide. Whether you are a builder, architect, facilities manager or homeowner, you can buy door bolts online and have them delivered directly to site or to your preferred location. Our range is selected to meet Australian conditions and to integrate with broader door hardware schedules, including handles, locks, hinges and accessories from trusted brands like Barben, Dormakaba, Lockwood and Zanda.

By sourcing your bolts and wider architectural door hardware from one supplier, you streamline procurement, ensure finish consistency and reduce the risk of incompatible components. Our team can assist with general product guidance to help you choose suitable options for front doors, internal doors, external gates and commercial access points across your project.

Frequently Asked Questions

What type of bolt is best for a front door?

For a front or main entry door, a robust surface-mounted barrel bolt or key-lockable security bolt is commonly used as an additional locking point alongside a primary lockset. Choose a bolt with a solid construction and a finish that matches your existing architectural door hardware, such as matte black or stainless steel, and ensure it is suitable for external use.

Are these bolts suitable for both residential and commercial doors?

Yes, the range includes bolts for residential homes as well as commercial and industrial facilities. Light-duty barrel bolts are ideal for internal doors and cupboards, while heavier-duty tower bolts, patio bolts and security bolts are better suited to high-traffic or external commercial doors. Always consider how frequently the door is used and the level of security required.

Can I use these bolts on sliding doors?

Many sliding doors, particularly patio and balcony doors, are well suited to purpose-designed patio bolts or security bolts. These typically secure the door into the frame or sill to help prevent it from being lifted or forced. When buying sliding door bolts online, check that the bolt style and fixing method match your door and frame type, and pair it with compatible hardware from brands like Lockwood or Dormakaba where needed.

What finishes are available for door bolts?

Door bolts are available in a variety of finishes to suit different styles and environments, including matte black, brushed stainless steel, satin chrome, brass and other metallic tones. This makes it easy to match your bolts to Barben, Zanda, Lockwood or Dormakaba handles, hinges and accessories throughout your project for a cohesive architectural look.

Do I need a locksmith or can I install bolts myself?

Many surface-mounted barrel bolts and simple internal bolts can be installed by a competent DIYer using basic tools, provided the door construction is suitable. However, for security-critical bolts, commercial applications, or where the door material is more complex (such as aluminium or steel), engaging a professional installer or locksmith is recommended to ensure correct placement and secure fixing.

What are flush bolts and when should I use them?

Flush bolts are installed into the edge of a door, usually the inactive leaf of a double door set. They keep one door fixed in place at the top and/or bottom, allowing the other door to operate as the primary entry. Flush bolts are ideal for French doors, larger internal openings and some commercial double doors where a clean, unobtrusive appearance is important.

Are the door bolts suitable for coastal or outdoor environments?

For coastal or exposed outdoor environments, it is best to select bolts made from corrosion-resistant materials such as stainless steel or those with durable protective finishes. This helps maintain performance and appearance over time, especially in areas around Brisbane, Queensland and coastal New South Wales where salt and humidity can be higher.

Can I coordinate bolts with my existing architectural door hardware?

Yes, coordinating your bolts with your existing hardware is straightforward. Look for finishes and styles that complement your current handles, hinges and locks from brands like Barben, Dormakaba, Lockwood and Zanda. Matching the finish across all visible hardware creates a cohesive, premium look in both residential and commercial interiors.

Why Choose John Barnes Group?

John Barnes Group is a trusted Australian supplier of architectural door hardware, supporting projects in Brisbane, across Queensland, New South Wales and Australia-wide. By choosing us for your door bolts and related hardware, you gain access to quality products from leading brands, a broad range of finishes and styles, and responsive customer support from an experienced team. Whether you are fitting out a single home or a multi-site commercial project, we make it easy to buy bolts online and integrate them seamlessly into your overall door hardware schedule.