We do not make a screwless or a trimless light switch. Every Studio Timeless plate is held by two visible slotted brass screws per gang, and that is a design decision rather than a shortfall. This page explains what screwless and trimless actually mean, what each asks of your wall, and what we offer instead.
In short
- Screwless hides the fixing under a clip on cover. Trimless plasters the device into the wall with no visible frame. We make neither.
- Our plates take two screws per gang, not two per plate. A 1 gang takes two, a 3 gang takes six, a 5 gang takes ten, all on the standard 6-32 machine thread.
- The spare plate screw is a 1.5 inch solid brass slotted screw, and it exists in five finishes: Brass, Black, Stainless Steel, Neutral and White.
- A screwless plate needs the box set back behind the finished wall. One British range publishes a minimum recess of 1/8 inch for its boxes. Our monobloc unit screws to the box ears and asks nothing of the rough in.
- OSHA requires a faceplate to completely cover the opening and seat against the finished surface, so a plate that cannot sit flat is not only an aesthetic problem.
What a screwless switch actually is
A screwless switch is a two part plate: a mounting frame that screws to the box, and a decorative cover that clips over the frame and hides the fixing. Nothing is actually unscrewed. The screws are moved behind a second piece of metal, which is why the format is also sold as a screwless flat plate in the United Kingdom. The phrase that brings most people here, screwless trimless dolly switches for modern interiors, uses the British word for a lever: a dolly switch is what Americans call a toggle switch.
The clip on cover buys a clean face and costs you a thicker assembly, a cover that lifts off by hand, and a repair path that depends on one maker still producing that frame in five years. We took that last point apart in our comparison of generalist and specialist switch plate ranges.
What trimless means, and why it is a plastering job
Trimless is not a switch, it is a wall detail. A shadow gap bead or plaster in frame is set into the drywall, then the wall is skimmed up to the device so no plate edge is visible at all. You are buying a plastering system and a mechanism, and the result is beautiful.
What is rarely said out loud is the exit cost. Changing a device in a trimless aperture usually means breaking plaster and repainting. Our position is the boring one: a plate you can unscrew in forty seconds is a feature, and we would rather defend two screws than a wall repair.
Why we use two visible screws per gang
Our products are monobloc units, not the American convention of a plate bought separately from a device. The brass face and the mechanism arrive as one assembly that screws to the ears of your existing box, exactly like any United States wiring device. A clip on cover has nowhere to clip on a monobloc face. Hiding the fixing would mean giving up the one thing that makes the range easy to live with: it drops into a standard box with no proprietary back box and no rough in note. The mechanics are on our installation and compatibility guide.
The second reason is repair. The screws are on the face, so any electrician can take the unit out, and the replacement modules behind it are sold separately: a knurled toggle module is a part you can buy, not a plate you have to source again.
Two screws per gang, not two per plate
This is the most misread line in our catalogue. A gang is one device position, and each position carries its own pair of screws: a 1 gang toggle wall plate shows two, a 2 gang toggle wall plate shows four, a 5 gang plate shows ten. The spacing follows the American standard, which is why our plates fit boxes set thirty years ago: 3 5/16 inch between the device mounting holes, 2 3/8 inch between the plate screws. Gang by gang dimensions are in our guide to switch plate and outlet cover sizing.
The screw itself: 1.5 inch, slotted, solid brass, five finishes
If the screws are visible, they have to be worth looking at. Our spare 1.5 inch brass plate screws are solid brass with a slotted head, cut to the standard United States machine thread, in Brass, Black, Stainless Steel, Neutral and White at the same price in every finish. The slotted head is deliberate: it reads as a line rather than a cross, and a line can be aligned.
Solid brass matters for a reason that has nothing to do with taste. A brass plated steel screw loses its coating at the slot the first time a screwdriver turns in it, then rusts in a bathroom. The Copper Development Association wrought brasses datasheet places the copper zinc family in the C20000 to C29999 range: the colour runs through the part, so a scratched brass screw is still brass. We make the same point about plating in our article on gold light switches.
How to make the screws disappear without going screwless
A visible screw is only a problem when it fights the plate. Three moves remove the fight.
First, match the finish. A Matte Black plate with Black screws, or White with White, leaves two small dots the same colour as everything around them, which is as close to screwless as an honest plate gets. The finish names are on our finishes page and side by side in our article on the eight brass switch finishes.
Second, use the Accent Style option. On the 1 gang dimmer wall plate and its toggle equivalent, Matte Black and White are the only finishes offered with Brass or Stainless Accents, and one honest note goes with it: the option changes the price inside a single colour. Matte Black with Matching screws is 65 dollars, Matte Black with Brass Accents is 60. That looks more like a pricing inconsistency than a decision, and we would rather say so than let you find it in the cart.
Third, use a blank wall plate where there is nothing to switch. Two screws on an unbroken brass face is the quietest thing we sell; the sizes are in the brass blank wall plates collection.
What a screwless system asks of your wall
Here is the part the screwless marketing leaves out. A plate that hides its fixing behind a cover needs the box slightly behind the finished surface. Reading the United States cut sheets of one British plate on box range on 15 October 2026, we found it written down: junction boxes must be recessed below the finished wall surface by at least 1/8 inch. On new work that line belongs in the rough in notes. In a renovation where the old boxes stand proud, no plate from that range will lie flat. We set the architecture out in our article on buying Forbes and Lomax in the United States.
Our monobloc unit has no equivalent requirement. It screws to the ears of the box you already have, and the only question is whether those ears are usable, which is the subject of our guide to electrical box types and sizes.
Three fixing systems, side by side
| Two exposed screws (Studio Timeless) | Screwless clip on cover | Trimless plaster in | |
|---|---|---|---|
| What you see | Brass face, two slotted screws per gang | Unbroken face, frame hidden beneath | Wall and control, nothing else |
| What the box must be | Any standard US box with usable ears | Recessed behind the finish, sometimes a published minimum | Set by the frame at rough in |
| Plate thickness | 0.080 inch | Frame plus cover, always thicker | Not applicable, flush with plaster |
| Changing a device later | Two screws, no wall work | Pop the cover, unscrew the frame | Usually plaster repair and paint |
| In year five | Modules and screws sold separately | Depends on that frame still existing | Depends on that aperture system still existing |
| Renter and resale friendly | Yes | Yes | No |
The screw is rarely the complaint
We keep a record of what customers object to, and after a year of it the answer is plain: almost nobody writes in about the screws. They write in about the small plastic insert around a toggle lever.
On 16 October 2026 a contractor specifying a three storey house told us they preferred our Retro Toggle precisely because it shows no black plastic. That is fair, and the answer we gave is the one we will give here. On the knurled toggle the insert colours depend on the finish: Satin Brass, Antique Brass and Unlacquered offer a Black or a White insert, Aged Bronze and Stainless Steel are Black only, and there is no brass insert on any complete knurled switch. The full distribution is in our article on knurled light switches.
There is a trade off hiding in that preference. The Retro Toggle carries a CE mark and is not UL listed, while the knurled toggle is cULus listed under UL file E313169, valid in the United States and Canada, and UL states plainly that a CE marking is not a UL Listing. So on an inspected project the cleaner looking lever is the one your inspector may refuse, and the one with a small insert is the one with a file number. We repeat that wherever it comes up, including our article on the retro and vintage ranges.
Thick walls, tile and stone: the one inch extension
A screw that is too short is the second most common reason a plate will not sit flat. Behind tile or stone the box ear can sit an inch or more behind the finish. Our brass screw extensions add a full inch each, so a 1.5 inch screw ends up at roughly 2.5 inch assembled, and they only work when the ear is recessed a full inch or more. For a shallower recess a longer 6-32 brass machine screw is correct, and we will say so rather than sell a sleeve that does not fit.
One limit worth stating: the extensions come in a single finish while the screws come in five, so a Black or White screw on a tiled wall has an unmatched sleeve behind it. Both parts are in the brass screws and extensions collection, and both start at packs of ten, so a single replacement screw cannot be bought today.
Screws, extensions and pack pricing
| Part | Specification | Options | Pack pricing |
|---|---|---|---|
| Brass plate screw | 1.5 inch, slotted head, solid brass, standard US machine thread | Brass, Black, Stainless Steel, Neutral, White | 40 dollars for 10, up to 140 dollars for 100 |
| Brass screw extension | Sleeve, adds one full inch; a 1.5 inch screw becomes roughly 2.5 inch | One finish only | 40 dollars for 10, up to 140 dollars for 100 |
| Screw spacing | 2 3/8 inch between plate screws, 3 5/16 inch between device holes | Two per gang | Supplied with every plate |
What the code says about faceplates
The argument for a plate that seats properly is not only visual. Under OSHA 29 CFR 1910.305(c)(4), snap switches mounted in boxes shall have faceplates installed so as to completely cover the opening and seat against the finished surface. At (c)(5), snap switches including dimmer switches shall be effectively grounded and shall provide a means to ground metal faceplates, whether or not a metal faceplate is installed. A solid brass plate is a metal faceplate, which is why we wrote a whole article on upgrading switches in a house with no ground wire.
That is a federal workplace rule, quoted for what it says about good practice. What governs your house is the edition of NFPA 70 adopted where you live, applied by your authority having jurisdiction. Whether you need a licensed electrician or a permit is a separate question, answered in our guide to permits and licensed electricians.
Where screwless or trimless is the right answer
If the brief is a minimal interior where no fixing may be visible and the walls are being built or replastered, trimless is the correct specification and we are not it. If you want a clip on cover and you are still at rough in, a screwless plate on box range is reasonable and we are not it either. Buy what matches the brief.
We are the right answer when the boxes already exist, when the project must survive a device change in five years, when the plate has to be solid brass through and through, and when you would rather have two aligned brass slots than a cover that lifts off with a fingernail. Comparison starts with Buster and Punch alternatives; the decision gets made in the wall plates and dimmer collections.
Frequently asked questions
Do you make screwless brass light switches?
No. Every Studio Timeless plate and monobloc unit is fixed with two visible slotted brass screws per gang, and we treat the exposed screw as part of the design and of the repair path.
What is a dolly switch?
Dolly is the British word for a toggle lever, so a screwless dolly switch is a lever switch with a clip on cover that hides the fixing screws.
What does trimless mean on a switch or socket?
The device sits in a plaster in frame so the wall finish runs up to the control and no plate edge shows. It is a wall detail decided at rough in, not an option you can add later.
Why does my light switch have 2 brass and 1 black screw?
Those are terminal screws inside the box, not plate screws: the brass coloured pair takes the line and load, and the darker one is usually the common on a 3 way switch. Our article on identifying wires in an old wall box walks through them.
Can I get screws that match my plate exactly?
Yes, within five finishes. Plates ship with screws matched to the finish and accent style you chose, and spares exist in Brass, Black, Stainless Steel, Neutral and White.
What screw thread do brass wall plates use?
The standard United States wall plate thread, 6-32, which is why a hardware store screw works if you need one in a hurry.
My plate will not sit flat against the wall. What is wrong?
In order of likelihood: screws too short for the wall build up, box recessed too far back, bent or broken box ears, or plaster broken away at the edge of the box. All four are in our guide to electrical box types and sizes.
Can I buy a single replacement plate screw?
Not today: the smallest pack is ten screws at 40 dollars. If you lost one screw from a recent order, write to us before buying a pack.
Our position, in one paragraph
Screwless and trimless are good looking formats that answer a real brief, and both move cost and risk into the wall. We chose the opposite trade: a 0.080 inch solid brass face, two slotted screws per gang in five finishes, a monobloc unit that fits the box you have, and parts you can still buy in five years. If that is the trade you want, start with the brass toggle switch plates or the brass dimmer switch plates.
Last updated: October 16, 2026
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