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CAR-AQ84-254-PB
AQ84 253mm Surface Bolt Polished Brass
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AQ84 253mm Surface Bolt Polished Brass
In stock
Delivery Information
| Delivery Time Frame | Delivery Information |
| Next Working Day By 1PM | When an order is placed by 3pm for next working day on certain items |
| Standard Delivery | Usually delivered in 2 to 4 working days |
| Delivery Charges | |
| UK Mainland | Prices start at £3.95 for very small items, £6.50 for small, £9.50 for medium and £20 for large/long items |
| Scottish Highlands & Islands, Northern Ireland & Ireland | Prices from £30, please see our delivery page for more info. |
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£29.99
Incl. VAT
£24.99
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Description
AQ84 253mm Surface Bolt Polished Brass for Dependable Door Security
Securing internal pairs of doors, grand entranceways, and heritage timber leaves often poses an aesthetic and functional challenge. Standard hardware can look utilitarian, while flimsy barrel catches frequently suffer from mechanical play, rattling loose in their housings over time. The AQ84 253mm Surface Bolt Polished Brass solves these issues directly by combining heavy duty perimeter protection with a refined architectural aesthetic. Designed to offer substantial holding power across domestic and commercial premises, this surface mounted fitting delivers an impressive physical barrier against forced movement while harmonising with classic interior schemes.
Manufactured to rigorous standards, the fitting features a heavy, wide profile that spreads lateral pressure evenly across your door frame. Traditional round bolts can twist or buckle when subjected to repeated stress, but this solid unit incorporates a flat slide design that remains securely captive within its tracks. Whether you are refurbishing a period property, retrofitting French casement sets, or outfitting secondary leaves in heavy traffic settings, the unit provides reassurance without detracting from the natural beauty of your woodwork. It introduces an immediate feeling of solidity to every turn, closing the door firmly against draughts and unauthorised entry.
Supplied with universal keeps to accommodate inward and outward opening configurations, the AQ84 253mm Surface Bolt Polished Brass is engineered for versatile installation across diverse joinery setups. With an integrated ball and spring mechanism, each throw of the bolt feels deliberate and positively located, eliminating the sagging common in inferior alternatives. Supported by an extensive ten year mechanical guarantee from Doorfit, this hardware piece represents a long term investment in security, traditional craftsmanship, and reliable daily operation.
Step by Step Installation and Configuration Pipeline
Stage 1 Door Leaf Assessment and Alignment
Begin by inspecting your timber leaf and surround to select the ideal mounting height. Offer the primary body up to the timber surface, checking that it sits perfectly plumb with a spirit level. Mark the screw locations clearly to ensure the substantial 253mm body aligns squarely with the frame header or threshold.
Stage 2 Pilot Drilling and Fixings
Pre drill pilot holes using an appropriately sized wood bit to prevent splitting delicate hardwood grains. Secure the main casing firmly using the provided brass matching screws. Avoid over tightening with high speed power drivers, as hand tightening ensures clean countersinking and protects the polished surface finish.
Stage 3 Strike Plate Selection
Select the appropriate strike plate from the supplied packet based on door swing direction. Outward swinging leaves generally require the flat plate receiver mortised flush into the jamb, while inward opening setups use the angled receiver. Position the strike so the 25mm throw enters cleanly without binding.
Stage 4 Operational Testing
Extend and retract the flat slide several times to feel the internal spring ball engage at full extension. The mechanism should locate firmly without requiring excessive manual force. Once complete, your door leaf benefits from rigid perimeter retention that prevents frame warping and deters forced entry.
Architectural Advantages and Practical Engineering
The operational integrity of any auxiliary door hardware depends on mechanical resistance and daily tactile satisfaction. The flat slide bolt design incorporated within the AQ84 surface fitting presents distinct advantages over conventional cylindrical barrels. By distributing operational shear forces along a flattened cross section, the shoot resists twisting forces that occur if someone attempts to lever the door leaf open. At 36mm wide, the casting remains substantial enough to resist heavy physical shocks while maintaining an elegant, streamlined visual presence on the face of the timber.
Internal tension is regulated by an integral ball and spring mechanism. In ordinary hardware, loose clearances allow gravity to pull unlatched vertical bolts downward over time, potentially scuffing floor finishes or jamming doors. This precision spring loaded detent firmly retains the bolt in both retracted and projected positions, providing crisp tactile feedback during operation. Homeowners and commercial facility managers benefit from smooth handling that feels remarkably solid year after year.
Versatility remains central to the engineering of this piece. By providing alternative strike brackets right inside the box, the product eliminates the frustration of ordering separate auxiliary receivers. You can securely fasten tall double rebated doors, secure storage rooms, or reinforce side perimeter access points without worrying about hardware compatibility. The rich polished brass finish adds genuine warmth, beautifully reflecting ambient light to accentuate natural wood grain on oak, walnut, or painted joinery.
Detailed Specifications
Essential Care and Maintenance Instructions
To maintain the brilliant lustre of your polished brass surface bolt, regular maintenance should be carried out using gentle cleaning methods. Wipe the surface occasionally using a soft microfibre cloth lightly moistened with mild soapy water, then buff dry immediately to prevent water spotting. Alternatively, treat the fitting with a soft cloth and natural beeswax or a non abrasive automotive wax to create a defensive barrier against moisture and atmospheric tarnishing.
Important Maintenance Notice Under no circumstances should you clean this hardware with proprietary liquid metal polishes, solvent based cleaners, scouring pads, or aerosol sprays. Chemical cleaning agents will strip the protective lacquer coating, leading to rapid discoloration, uneven surface degradation, and premature tarnishing of the brass finish.
Not Sure If This Door Bolt Fits Your Project?
Selecting the exact hardware dimensions, throws, and keepers for bespoke architectural joinery requires precision. If you need guidance on clearance measurements, door configurations, or matching finishes, our knowledgeable team at Doorfit is always on hand to assist with your architectural ironmongery specifications.
Contact Our TeamSpecification
| Manufacturer | Carlisle Brass |
|---|---|
| Finish | Polished Brass |
| Dimensions | 253mm |
| Guarantee | 10 Year (Mechanical) |