Anchors
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Sinsun Concrete Anchors: The Best Way to Your Project Safe and Work Well
For contractors and engineers, faulty anchors are not just a product failure; they also pose a risk to safety and budgets. Sinsun offers a comprehensive line of concrete anchors at Sinsun, from lightweight drywall anchors to structural-grade chemical anchors.. All our products are designed and manufactured to meet international standards. Our focused approach ensures that our fasteners deliver more than just strength: we provide clarity through our selection guides, as well as dependable performance. This ensures that your projects are completed on time and meet code requirements.
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Technical Specifications Table
| Product Type | Material / Finish | Diameter Range (mm) | Minimum Embedment Depth (mm) | Recommended Hole Diameter (mm) | Minimum Installation Torque (Nm) | Characteristic Resistance (Typical for M10 in C30) |
| Wedge Anchor | Carbon Steel (Zinc Plated) Stainless Steel A2/A4 | M6, M8, M10, M12, M16, M20 | 40 - 95 (Diameter dependent) | Exact match to anchor diameter | 15 - 150+ | Tension (Nₚ): ~12 kN |
| Shear (Vₚ): ~10 kN | ||||||
| Sleeve Achor | Carbon Steel (Zinc Plated) Stainless Steel A2 | M6, M8, M10, M12 | 30 - 70 (Diameter dependent) | +0.5 to +1.0 mm over anchor diameter | 10 - 35 | Tension (Nₚ): ~8 kN |
| Shear (Vₚ): ~7 kNn | ||||||
| Drop-In Anchor | Carbon Steel (Zinc Plated) | M8, M10, M12, M16 | 40 - 75 (Diameter dependent) | Exact match to anchor diameter | N/A (Set with tool) | Tension (Nₚ): ~9 kN |
| Shear (Vₚ): ~8 kN | ||||||
| Chemical Anchor (Stud) | Steel Rod (Galvanized or A4) | M8, M10, M12, M16, M20, M24 | 80 - 200+ (Hole depth = rod embedment + clearance) | +2 to +4 mm over rod diameter | N/A (Set with tool) | Varies by resin & hole size. Tension (Nₚ): Often >20 kN |
Key to Table Parameters:
Minimum Embedment Depth (hₑ꜀): The critical depth the anchor must be installed into concrete to develop its full strength.
Recommended Hole Diameter: Drilling the correct size hole is essential for proper expansion and holding power.
Characteristic Resistance (Nₚ, Vₚ): The ultimate tensile and shear load values determined from assessment tests, used by engineers for design calculations. The values shown are illustrative for a medium-sized anchor (e.g., M10) in standard concrete (C30).
What is the difference between wedge anchors and chemical anchors?
For wedge anchors
Drill: Use a carbide-tipped bit and a rotary hammer drill. The hole's diameter must be the same as the anchor's size. Drill to the minimum depth of embedment or deeper.
Clean: Use a brush, air blower or hoover to get rid of all the dust in the hole (this is the number one reason for less capacity).
Insert and set: Put the anchor in the hole through the fixture.The nut should be tightened with a torque wrench.It pulls the wedge and increases the size of the sleeve.
For chemical anchors
Drill and Clean： Make the hole the right size and depth. Use a brush and air to clean it very well so that no dust is left behind, which would break the bond between the resin and the concrete.
Inject： Fill the hole completely with the chemical resin by pouring it from the bottom up.
Insert： Slowly push the threaded rod or rebar into the hole while turning it to make sure it is fully encased. Do not touch it until the resin has fully cured, which depends on the temperature.
Why Choose Sinsun Anchors?
Choosing an anchoring solution is an important engineering choice that affects the safety of the project, the strength of the structure, and the cost over the life of the project. Engineers and procurement professionals choose Sinsun not because of vague promises, but because they can see that it works and lowers risk.
Wall Anchors for Drywal
● These anchors are made just for hollow plasterboard panels. They spread the weight behind the wall so that it doesn't pull out. Perfect for holding mirrors, small shelves, or towel bars that aren't too heavy where there isn't a stud. They hold on well to the weak core of plasterboard.
Toggle Bolts for Drywall
● The best way to hang heavy things on plasterboard without a stud. The wings spring open once they are through the wall, making a big bearing surface. Necessary for putting up cabinets, big pieces of art, or heavy shelves (usually holding 50 to 150 pounds), and they hold better in hollow walls.
Expansion Anchors for Concrete
● This is a basic mechanical anchor for solid concrete. It makes a strong, permanent hold as the sleeve expands with tightening. Used a lot to attach structural brackets, machine feet, or handrail posts to concrete floors and walls, giving them a lot of shear and tensile strength with a simple installation.
Drywall Anchors for TV Mount
● Designed to safely attach flat-screen TV mounts to plasterboard studs or, with certain heavy-duty anchors, directly to the wall panel. These anchors need to be able to hold the TV's weight as well as the forces that make it tilt and swivel. It is important to choose the right anchors for safety and to avoid expensive damage. This often means using a mix of stud fixation and special hollow-wall anchors.
Brick masonry anchors
● These are general-purpose anchors made for solid brick and masonry. They hold outdoor lights, vent hoods, or gate structures in place safely. Depending on whether the brick is solid or could break, these anchors make sure that the hold is strong enough to last through bad weather.
Wall Anchors for Shelves
● This type of anchor needs to be carefully chosen based on the type of wall (drywall, plaster, or masonry) and the weight of the shelf.Choosing the right anchors, from light plastic ones for plasterboard to heavy-duty ones for masonry, keeps shelves from sagging or collapsing, keeping items stored on them protected.
Sleeve Anchors for Brick
● A strong and flexible choice for solid masonry, brick, or block. The anchor expands evenly inside the hole that has already been drilled, making it good for through-fixing tasks like attaching ledger boards, lights, or signs to brick walls. It is a standard for contractors who work with masonry because it is hard to pull out.
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Why Choose Sinsun Anchors? (Key Differentiators)
Complete Range, Simplified Sourcing
From light-duty drywall anchors to structural chemical anchors and everything in between (wedge, sleeve, drop-in), we provide a one-stop solution.In this way, your procurement process is streamlined, supplier complexity is reduced, and your project's various fixing requirements are met reliably.
Full Traceability and Certified Performance
Our anchors are made to meet international testing standards, such as ETAG and ICC-ES. Our technical data sheets provide easy-to-read resistance values (Nr, Vr) so that engineering calculations can be made accurately and performance can be expected to be predictable.
Quality Control from Start to Finish
Every step in the process, from the certification of steel to the final plating or coating, meets strict quality standards. In this way, product variability is reduced, resulting in fewer on-site failures caused by mechanical properties, dimensions, and corrosion resistance.
Provide technical support
In addition to selling products, we also provide technical support and application engineering. Our team can help you choose the right anchors for your specific substrate and load needs before you buy them. They can also give you tips on how to install them correctly to get the best and safest performance.
Global Compliance & Export Readiness
Our products and paperwork are ready for export and meet the requirements for shipping and customs in most countries. This makes it easier for our overseas distributors and exporters of big projects to bring things into the country.
Q: What is the best type of hollow wall anchor to use to mount a 50-inch TV on a wall made of plasterboard and studs?
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A: Don't use single-point anchors for this heavy, moving load. Use a mix: lag screws to attach the main bracket to the wall studs. If you need to attach something to a wall that isn't a stud, use Sinsun toggle anchors (butterfly bolts). Due to their metal wings, they are much stronger than plastic ones (often more than 50 pounds each). In this way, stability and safety are ensured.
Q: Are "cement anchors" and "masonry anchors" the same thing? What should I use for old, soft brick?
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A: "Cement anchors" refer to anchors used in cement-based materials such as concrete, brick, or block. A standard expansion bolt can crack or come loose on old, soft brick. It's best to use a chemical anchor or a sleeve anchor. The resin in a chemical anchor sticks to the full depth of the hole, making the weak material stronger and giving it better holding power without putting stress on the hole.
Q: We're putting up safety railings on a balcony by the sea. Is a zinc-plated concrete wedge anchor better than a stainless steel one?
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A: Always use stainless concrete anchors in coastal areas where there is a lot of chloride. You need a concrete wedge anchor made of AISI 316 (A4) stainless steel. The zinc plating on things protects them from corrosion, but it will corrode over time when exposed to salt spray. In corrosive environments, 316 stainless steel meets crucial building code requirements because it is corrosion-resistant.
Q: Why do regular drywall anchor screws break when I put up a heavy medicine cabinet? What else is there?
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A: A standard plastic anchor or wallboard anchor only works because of friction in a soft core, so it doesn't hold very well. If your cabinets are heavy (more than 30 pounds), use a mechanical expansion anchor, such as a toggle bolt or a molly anchor. Sinsun's big plasterboard anchors (toggle bolts) are perfect. They fold up to fit through a small hole, then spring open big metal wings behind the plasterboard to spread the weight over a much bigger area.
Q: What does the "expansion" in an expansion bolt mean, and how does it change the size of the hole?
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A: Anchors expand as they are tightened, creating a friction lock as they push against the wall of a hole. It is important to remember that the size of the hole needed depends on the type. Drill the hole for a wedge anchor exactly the same size as the anchor. The hole for a sleeve anchor is usually 0.5 to 1 mm bigger than the anchor so that the sleeve can expand correctly.
Q: Are a sheetrock wall anchor, a butterfly bolt, and a toggle bolt all the same thing?
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A: "Sheetrock" is a brand name for plasterboard, so sheetrock wall anchors are a type of plasterboard anchor. A butterfly bolt is a kind of toggle anchor that has metal wings that fold like a butterfly's to go through the hole and spring open. They work great for loads that are medium to heavy. Some toggle bolts have straight metal bars that are spring-loaded. For heavier-duty plasterboard work, both are much better than simple plastic plugs.
Q: What are "concrete bolts," and how do I know which one to use on a wall that is made of concrete?
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A: "Concrete bolts" is a general term for any bolt-style fastener that is made for concrete. This includes sleeve anchors and wedge anchors. Pick the right load and fixture for a wall made of concrete. Fix heavy, permanent fixtures like structural brackets with concrete wedge anchors. If your fixture is light or adjustable, like a pipe clamp, you might not need a sleeve anchor.
Q: Can you use the same anchor for a wall made of solid bricks and a wall made of poured concrete?
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A: Yes, most of the time, but the size and type of anchor matter. A heavy-duty concrete wedge anchor can be used on both solid and strong surfaces. It is safer to use a chemical or sleeve anchor on hollow or softer bricks to prevent them from cracking. The main point is that bricks won't hold as much as concrete. Be sure to check the technical data for the specific substrate. If you're not sure about brick, go with a bonded (chemical anchor) or low-expansion solution.
Q: When is the only right choice a toggle anchor?
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A: When attaching heavy objects to hollow walls (such as plasterboard, plasterboard or hollow-core concrete blocks) with a large, empty space behind the surface, toggle anchors (such as butterfly bolts) are recommended. Their large, spreading wings distribute the load over a large area of the internal wall surface, giving them the strongest pull-out strength in materials where expansion anchors can't grip.
Q: There are so many Types of Wall Anchors. What's a quick way to narrow down my options?
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A: Begin with two questions: 1) What kind of material is my wall made of? (Solid concrete, brick, or hollow drywall/block). 2) How much does the object weigh? Choose an expansion bolt (wedge, sleeve) or a chemical anchor for solid materials. Choose a toggle anchor or a molly anchor for things that are hollow. Plastic anchors can be used with light loads, but metal expansion mechanisms are needed for medium to heavy loads.
Q: What does it mean for a plasterboard anchor to be "large," and when do I need one?
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A: "Large" usually means the size of the part of the wall that holds up the load. The wing spreads on Sinsun's Large Drywall Anchors are usually at least 2 inches. You need one for heavy things like tall bookcases, floating vanities, or big TVs mounted on the wall. The weight makes a lot of leverage and pull-out force. The wide spread spreads this force over a larger area of the plasterboard, which stops pull-through.
Q: Is it ever a good idea to use plastic anchors, or should I always use metal?
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A: Plastic anchors work well on solid surfaces like brick or concrete, or on very light items like plasterboard. They are also inexpensive. They are great for picture frames, small shelves, or cable clips that weigh less than 10 pounds. When there is a tensile (pull-out) load on them, their walls are weak. For heavy objects, plasterboard, or places requiring high reliability, a metal expansion or toggle anchor is always the better choice.
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