Grey nylon rimless expansion wall plugs suitable for brick, concrete and most solid substrates. Compatible with screw sizes 2.6mm to 12mm. The rimless design lets them sit flush or below the surface — handy when a protruding rim simply won’t do.
Size
QTY
Price
QTY
m5 x 25mm
100
£1.29£1.55
M6 x 30mm
100
£1.59£1.91
M8 x 40mm
100
£2.29£2.75
M10 x 50mm
50
£1.99£2.39
M12 x 60mm
25
£2.29£2.75
m14 x 75mm
25
£3.39£4.07
Rimless expansion wall plugs are one of those items that get used on almost every job. If you have fixed a bracket, hung a handrail, mounted shelving or bolted a satellite dish to a wall, there is a good chance one of these was involved. The rimless design is what sets them apart from a standard flanged plug: because there is no collar at the top, they can be driven below the surface of the base material, which is exactly what you need when fixing into recessed holes or working with materials where a proud rim would cause problems.
These are made from grey nylon and cover screw sizes from 2.6mm right up to 12mm, which makes them genuinely all-purpose. The larger sizes in the range are suited to coach screws, so if you are fixing heavy-duty brackets or gate hardware into masonry, they will handle the load. That said, these are designed for solid substrates — brick, dense concrete, block — not for hollow or cavity materials where a different anchor type is the better choice.
Why the Rimless Expansion Wall Plug Works
Two things make these plugs worth keeping on the van. First, the sprung spin fins. These grip the host material as the plug is inserted, locking it in place and preventing it from spinning when you drive the screw. That matters most on overhead fixings, where a plug that spins or backs out is not just annoying, it is a genuine hazard. Second, the two-way expansion design means the plug spreads load in two directions as the screw is tightened, which gives you a bit more confidence when fixing close to an edge where single-direction expansion would risk cracking the substrate.
Available in a range of sizes from M5 x 25mm up to M14 x 75mm, and sold in bags of 25, 50 or 100, they are practical to stock and easy to work through on larger jobs. Priced for trade, they sit in that useful category of product that costs very little per fix but makes a real difference to the quality of the finished job. If you are not already buying these in bulk, you probably should be.
Pro Tip: When fixing into older soft brick, always use the next size up plug to the one you would normally reach for, as the slightly larger expansion footprint gives a much more secure hold in porous or crumbly material.
Rimless expansion wall plugs are used across almost every trade that involves fixing into masonry. Electricians use them when securing back boxes and conduit saddles. Carpenters reach for them when hanging shelving or fixing stud work to solid walls. Plumbers rely on them for pipe brackets and radiator fixings. On larger commercial jobs they are commonly used for fixing cable management trays, handrails, and structural brackets to concrete or blockwork. The rimless profile makes them the right choice wherever a flush or sub-surface finish is required.
Best For
Bracket and handrail fixings
Shelving and storage installations
Satellite dish and aerial mounting
Cable management fixings
Overhead and close-to-edge applications
Coach screw installations (larger sizes)
Compatible Surfaces
Brick
Dense concrete
Blockwork
Most solid masonry substrates
Key Features
Rimless design for flush or sub-surface installation
Sprung spin fins prevent spinning during install
Two-way expansion for close-to-edge use
Suits screw sizes 2.6mm to 12mm
Grey nylon construction
Sizes from M5 x 25mm to M14 x 75mm
Not suitable for: Not suitable for hollow walls, plasterboard or cavity materials where a cavity anchor or toggle bolt is required. Not recommended for dynamic or structural load-bearing fixings where a resin anchor or specialist bolt would be the appropriate choice.
Mark and drill your hole to the correct diameter and depth for the plug size you are using. Clear out any dust from the hole before inserting the plug. The spin fins should grip the side of the hole as you push or tap the plug in, so it sits firm before the screw goes anywhere near it.
Drive the screw squarely and steadily. The plug expands in two directions as the screw tightens, drawing the anchor tight against the host material. Avoid over-driving, particularly in older or softer brick, as you can crack the substrate around the plug and lose the holding strength you just created.
Select the correct plug size for your screw diameter and the load you are fixing
Drill a clean hole to the matching diameter and depth, adding a few extra millimetres for dust clearance
Clear debris and dust from the hole using a blow pump or brush
Push or tap the plug into the hole until it sits at or below the surface as required
Insert the screw and drive steadily, keeping it square to the wall
Tighten until the fixing is firm, but stop before over-torquing to avoid cracking the substrate
Can rimless expansion wall plugs be used with coach screws?
Yes, the larger sizes in the range are designed for use with coach screws. If you are fixing heavy brackets, gate posts or similar into masonry, choose an M10 or larger plug to match the coach screw diameter and ensure you are drilling into a solid substrate rather than a hollow or lightweight block.
Why choose a rimless plug over a standard flanged wall plug?
A standard plug with a collar sits proud of the surface, which is fine in most situations but causes problems when fixing into recessed holes or when the face of the material needs to be flush. The rimless design can be tapped below the surface completely, which matters when fitting pattress boxes, flush brackets, or any fixing where a protruding collar would prevent the item from sitting flat against the wall.
Manufactured from grey nylon, these expansion plugs combine light weight with good resistance to moisture and the mild alkalis present in masonry. The two-way expansion mechanism distributes load radially within the host material as the screw is driven, and the sprung spin fins engage with the drilled hole walls on insertion to resist rotation during installation. Suitable for screw diameters from 2.6mm to 12mm across the size range.
Material
Grey nylon
Compatible screw sizes
2.6mm to 12mm
Available sizes
M5 x 25mm, M6 x 30mm, M8 x 40mm, M10 x 50mm, M12 x 60mm, M14 x 75mm
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