Plaster washers help secure loose or sagging plaster to its backing by spreading a screw’s holding force across a wider area. The options below are 1-inch metal washers; screws are not listed as included, so you will need to choose screws separately for your wall or ceiling and its framing. Dunzy’s 400-piece set is best for larger jobs, while the 100-piece options suit smaller repairs. Check the center-hole size and washer quantity before choosing.
| Product | Best For | Quantity | Listed Size |
|---|---|---|---|
| 100-Piece Zinc Metal Washers | Small repairs | 100 | 1-inch diameter; 0.18-inch hole |
| Dunzy Concave and Convex Washers | General repairs with a larger supply | 200 | 1-inch diameter; 5/32-inch hole |
| Dunzy 400-Piece Washers | Multiple or extensive repairs | 400 | 1-inch diameter; 5/32-inch hole |
| Zinc-Plated Steel Washers | Buyers seeking basic size details | 100 | 1-inch diameter; 5/32-inch hole |
| Cunhill Zinc-Plated Washers | A 200-piece steel option | 200 | 1-inch diameter; 5/32-inch hole |
100-Piece Zinc Metal Plaster Washers
Best for: Homeowners handling a small wall or ceiling repair who want a modest supply of washers. This set includes 100 galvanized metal washers, each listed as 1 inch in outer diameter with a 0.18-inch center hole.
The product description says the washers are intended to secure plaster to wood panels and help prevent cracking. It also describes the metal as waterproof, rust-resistant, strong, and wear-resistant. Those features make this a straightforward option when you need washers for a targeted repair rather than a large stock of parts.
Why it was selected: It offers a clearly stated 100-piece quantity and a listed center-hole measurement, making it easier to compare with screws you already have or plan to buy. The 0.18-inch hole is not identical to the 5/32-inch size listed for the other products, so check screw fit rather than assuming sizes match.
Limitation: Screws are not listed as included. The product information does not specify a screw type or length.
Dunzy 200-Piece Concave Washers
Best for: Routine wall and ceiling repairs where a 100-piece supply may be too small. Dunzy includes 200 zinc-plated metal washers, each about 1 inch across with a 5/32-inch center hole.
The product listing describes a concave and convex design intended to make installation easier. The washers are also described as waterproof, rustproof, strong, and wear-resistant. Their listed dimensions provide a useful comparison point when selecting screws, but you should verify that the screw head and shank work with the washer and the wall assembly.
Why it was selected: This is a practical middle-ground quantity: more washers than a small repair kit, without moving to a 400-piece pack. Choose it if you expect to reinforce several areas or want extras available for later repairs.
Limitation: The listing asks buyers to confirm the size before purchase. No screws are listed in the package.
Dunzy 400-Piece Plaster Washers
Best for: Larger repair projects, repeated maintenance, or buyers who want a substantial supply on hand. This package contains 400 washers with a listed 1-inch outside diameter and 5/32-inch center hole.
Like the 200-piece Dunzy option, these washers have a concave and convex design. The product description identifies them as zinc-plated metal and describes them as waterproof, rustproof, strong, and wear-resistant. Their stated use is wall and ceiling repair, including fixing plaster or drywall holes.
Why it was selected: It has the largest quantity among the listed products, so it is better suited to projects that require many attachment points or to keeping repair supplies in reserve. The dimensions match those listed for the 200-piece Dunzy set, making quantity the main stated difference between the two.
Limitation: A large pack may be unnecessary for a single small repair. Screws are not listed as included, and the product description does not give screw-size guidance.
100 Zinc-Plated Steel Plaster Washers
Best for: Buyers who want a basic 100-piece pack with material and measurements clearly stated. The washers are listed as steel with a zinc-plated finish, a 1-inch outside diameter, and a 5/32-inch center hole.
The product title describes the washers for drywall or plaster ceiling and wall repair, including sagging surfaces. A 1-inch disc provides a broader contact area than a screw head alone, while the center hole allows a screw to pass through. The provided details are concise, which can help buyers compare the important dimensions without sorting through a long list of additional claims.
Why it was selected: This is a simple option for a smaller repair when the 5/32-inch center hole is the preferred listed size. It has the same stated quantity and basic dimensions as some other choices, so compare the listing details and package needs before deciding.
Limitation: The product details do not state additional design features or screw specifications. Screws are not listed as included.
Cunhill 200-Piece Zinc-Plated Washers
Best for: Buyers looking for a 200-piece steel washer set with a 5/32-inch center hole. Cunhill lists the washers as steel with zinc plating, approximately 1 inch in outer diameter, and supplied in a quantity of 200.
The product description calls these metal discs wall-repair supports that can help prevent a fastener from sinking into a damaged surface. The quantity may suit several repair locations or provide spare washers for future maintenance. The listed size is comparable to the two Dunzy sets and the 100-piece steel option above.
Why it was selected: It combines a moderate quantity with clearly stated material and dimensions. Choose it if you want 200 washers and prefer a listing that specifically describes their use as screw supports on damaged surfaces.
Limitation: The provided product information does not describe a concave or convex profile. Screws are not listed as part of the package.
Buying Guide: How To Choose Plaster Washers And Screws
What does a plaster washer do?
A plaster washer is a small metal disc installed under a screw head. Its wider surface helps distribute pressure across plaster that may be loose, cracked, or pulling away from its backing. The washer can help hold the plaster in place while the screw reaches suitable material behind it. It is a fastening aid, not a substitute for assessing serious structural damage or repairing a failed wall assembly.
These products are washers, not complete screw-and-washer kits. Plan to source screws separately unless the seller’s current listing clearly says otherwise. Choose a screw appropriate for the backing material and the repair location. The supplied product details do not identify screw type, length, or recommended spacing, so do not infer those specifications from washer size alone.
How many washers do you need?
Estimate the number of attachment points needed for the damaged area, then allow for a few spares. A 100-piece pack is the smallest listed quantity and may be suitable for a limited repair. The 200-piece options provide a middle-ground supply, while the 400-piece Dunzy set is the largest choice for extensive work or keeping a larger stock available.
Do not select a pack only by its piece count. The right quantity depends on the condition and size of the area, the repair approach, and the backing available for fastening. If the plaster is extensively damaged or continues to sag, consider getting advice from a qualified repair professional.
Which washer size should you check?
All five products are listed as approximately 1 inch in outside diameter. Four specify a 5/32-inch center hole; the 100-piece galvanized option lists a 0.18-inch hole. These measurements are close but not identical. Check the product dimensions against the screw shank and head rather than assuming every washer fits every screw.
The washer’s outside diameter and center hole serve different purposes. The outside diameter describes the area of the disc, while the center hole must allow the screw to pass through. A washer that does not fit the chosen screw properly can make installation difficult. Review the current product listing and packaging for exact measurements before starting.
Does zinc plating matter?
Several options describe a zinc-plated or galvanized finish, and some listings call the washers rustproof or waterproof. Such descriptions can help distinguish these products from uncoated metal, but the supplied information does not establish that a washer is suitable for every damp or outdoor location. Match the hardware to the conditions where it will be used, and follow the product label.
How should you compare the listed products?
| Comparison Point | What To Check |
|---|---|
| Quantity | Choose 100, 200, or 400 based on the repair and spare needs. |
| Hole size | Compare the listed 5/32-inch or 0.18-inch hole with your screw. |
| Material and finish | Check whether the listing identifies steel, zinc plating, or galvanizing. |
| Washer profile | The Dunzy products describe a concave and convex design; other listings provide less profile detail. |
| Included hardware | These listings describe washers; screws are not stated as included. |
What should you consider before installing them?
First identify what is behind the plaster and whether the screw can reach a secure backing. Then select a screw suitable for that material and long enough for the intended fastening, based on reliable guidance for the wall assembly. Keep the washer seated flat against the surface and avoid forcing a fastener in a way that further damages brittle plaster.
Use appropriate eye protection when drilling or fastening overhead, and take care around wiring or plumbing concealed in walls and ceilings. If the repair area is large, the surface is unstable, or you cannot identify a safe fastening location, pause and seek professional guidance. Product listings do not provide a complete installation plan.
Frequently Asked Questions
Are screws included with these plaster washers?
The supplied product details list washers but do not say that screws are included. Plan to buy suitable screws separately and confirm their fit with the washer’s center hole.
What size are these plaster washers?
Each product is listed as approximately 1 inch in outside diameter. Most list a 5/32-inch center hole; one 100-piece option lists a 0.18-inch hole.
Which pack is best for a small repair?
A 100-piece pack may suit a limited repair. Choose between the two listed 100-piece options by comparing their center-hole measurements and the material details provided.
Which product includes the most washers?
The Dunzy set contains 400 washers, the largest stated quantity in this selection. It is better suited to larger projects or buyers who want more spares than a 100- or 200-piece pack provides.
Can plaster washers fix every sagging ceiling?
No product information here establishes that washers are suitable for every cause or degree of ceiling damage. They are described as supports for plaster or drywall repair, but extensive sagging or damage may require professional assessment.
Are the 5/32-inch and 0.18-inch holes the same size?
No. They are different listed measurements, even though they are close. Check the washer opening against the screw you intend to use instead of treating the sizes as interchangeable.
