Colour-coded expansion wall plugs in boxes of 1000. Suitable for screws from 3.0mm to 7.0mm or 4 to 14 gauge. Anti-rotation moulding at the head improves holding power. A practical, cost-effective choice for everyday fixing jobs.
Size
Colour
Price
QTY
5.0mm
Yellow
£4.99£5.99
10.0mm
Blue
£18.95£22.74
red 5.5mm
Red
£4.99£5.99
brown 7.0mm
Brown
£5.99£7.19
Wall plugs are one of those things you never think about until you run out mid-job. These expansion wall plugs come in boxes of 1000 and cover the most common screw sizes used on site, making them a sensible bulk buy for tradespeople who fix things to walls for a living. The colour-coded system makes it easy to grab the right plug without stopping to measure up every time.
The plugs are designed for use with screws ranging from 3.0mm to 7.0mm, or 4 to 14 gauge, which covers the majority of everyday fixing applications. Each plug features anti-rotation moulding at the head, which bites into the substrate as the screw is driven home and prevents the plug from spinning in the hole. That small feature makes a noticeable difference when you are fixing into softer masonry or older brick where the hole can be slightly loose.
A self-locating internal channel guides the screw into the correct position as it enters the plug. This helps the plug expand evenly along its length rather than bunching at one end, which gives a more consistent and reliable fix. It also makes driving screws a little more forgiving, particularly when working overhead or in awkward positions.
Colour Coding and Wall Plug Sizes
Each colour corresponds to a specific screw size range, so you can identify the right plug at a glance without needing to refer back to a chart every time. The range covers yellow, red, brown, and blue, with options including 5.0mm, 5.5mm red, 7.0mm brown, and 10.0mm sizes. Yellow plugs handle the lighter end of the range, while brown and blue cover heavier fixings and larger diameter screws.
This colour coding system is consistent with the standard used across the trade, so if you are working alongside other fixers or handing a job over, everyone knows what they are looking at without any confusion.
Lightweight and General Fixing Applications
These wall plugs are well suited to lightweight and medium-duty applications such as fixing battens, shelving brackets, electrical back boxes, cable management, and general joinery items to masonry walls. The anti-rotation head and internal channel mean they perform reliably in standard brick, block, and rendered surfaces, and the box of 1000 means you are not constantly reordering.
For general contractors, electricians, joiners, and maintenance teams, having a full box of wall plugs on the van or in the site store is simply good housekeeping. At this price per box, stocking up in bulk makes more sense than buying small packs from a merchant at a premium. The plugs are lightweight and take up minimal space, so there is no real reason not to keep a few boxes to hand.
These are straightforward, dependable wall plugs that do exactly what they are supposed to do. Sometimes that is all you need.
Pro Tip: When drilling into softer mortar joints or lightweight block, go up one screw size rather than one plug size, as a tighter screw fit will compensate for any slight overdrilling in softer material.
Expansion wall plugs are used across almost every trade that involves fixing to masonry. Electricians use them for back boxes and cable trunking fixings. Joiners use them for door frames, skirting, and architrave. Maintenance teams use them daily for shelving, signage, and general repairs to brick and block walls. They are also widely used in domestic settings for picture rails, curtain poles, and kitchen units.
The colour-coded range suits first-fix and second-fix work alike, covering light fixings on smaller gauge screws through to more substantial fixings using larger diameter screws into solid masonry.
Best For
Fixing to brick, block, and masonry walls
Electrical back boxes and cable management
Shelving brackets and battens
Door frames and general joinery
Maintenance and repair work
Compatible With
Screws 3.0mm to 7.0mm diameter
4 to 14 gauge screws
Yellow, red, brown, and blue size ranges
10.0mm, 7.0mm, 5.5mm, and 5.0mm plug sizes
Key Features
Colour-coded for quick size identification
Anti-rotation moulding at plug head
Self-locating internal channel for even expansion
Box of 1000 for bulk use
Lightweight and easy to store on site
Not suitable for: These plugs are not designed for heavy-duty structural fixings or use in hollow walls, plasterboard, or cavity substrates. For those applications, use dedicated cavity fixings or heavy-duty anchors rated for the load.
Select the correct plug colour for the screw size being used. Drill a clean hole in the masonry to match the plug diameter, clearing out any dust before inserting the plug. Push the plug flush with the wall surface, then drive the screw through your fixing and into the plug until the anti-rotation head bites and the plug expands firmly against the sides of the hole.
Avoid overdriving the screw, as this can cause the plug to split rather than expand cleanly. If the hole feels loose, try the next size up rather than forcing a smaller plug to work harder than it should.
Select the plug colour that matches your screw diameter or gauge
Drill a hole in the masonry to the correct diameter for the chosen plug size
Clear dust and debris from the hole using a puffer or compressed air
Push the plug into the hole until it sits flush with the wall surface
Position your fixing plate or component over the plug
Drive the screw into the plug until the head seats firmly against the fixing
How do I know which colour plug to use for my screw size?
The colour coding follows a standard system used across the trade. Yellow plugs suit smaller gauge screws, red covers mid-range sizes, brown handles larger screws around 7.0mm, and blue is for the largest fixings in the range up to 10.0mm. Check the screw diameter against the plug size listed for each colour before drilling.
Are these wall plugs suitable for use in plasterboard?
No. These are expansion wall plugs designed for solid masonry substrates such as brick and block. Plasterboard requires dedicated cavity fixings such as spring toggles or plasterboard anchors, which grip behind the board rather than expanding against it.
What does the anti-rotation moulding actually do?
The anti-rotation moulding is a feature at the head of the plug that grips the face of the masonry as the screw is driven in. It stops the plug from spinning in the hole rather than expanding, which is a common problem in slightly loose or oversized holes. It gives a more reliable fix, particularly in older or softer masonry.
These expansion wall plugs are manufactured from nylon, which allows the plug body to expand outward under screw pressure without cracking or splitting in standard masonry conditions. The anti-rotation head moulding is formed as part of the plug body rather than added as a separate component. The self-locating internal channel is shaped to accept standard screw thread profiles and guide the screw tip centrally as it enters, promoting even radial expansion along the plug length.
Box Quantity
1000
Available Sizes
5.0mm, 5.5mm (red), 7.0mm (brown), 10.0mm
Colour Coding
Yellow, Red, Brown, Blue
Compatible Screw Range
3.0mm to 7.0mm / 4 to 14 gauge
Material
Nylon
Head Type
Anti-rotation moulded head
Substrate
Solid masonry, brick, block
Weight
N/A
Size
10.0mm, 5.0mm, brown 7.0mm, red 5.5mm
Box Quantity
1000
Colour
Blue, Brown, Red, Yellow
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