Hammering Anchor Screws: Wall-Friendly Or Wall-Damaging?

Hanging items on your walls can be a daunting task, especially if you're unsure about the type of tools required. One of the most common methods for hanging heavier items is to use anchor screws. However, the process of installing anchor screws can vary depending on the type of wall and weight of the object being hung. Before installing an anchor screw, it is crucial to determine the type of wall you are working with, such as plaster, drywall, concrete, or brick, as different walls require different types of anchors and installation techniques. Additionally, weighing the object beforehand is essential to ensure the selection of an anchor with sufficient weight allowance.

For plaster walls, plastic expansion anchors are recommended for items weighing less than 20 pounds, while molly bolts are more suitable for heavier objects. Drywall, on the other hand, calls for threaded anchor screws for lightweight items, and molly bolts for anything weighing more than 20 pounds. Concrete or brick walls typically require expansion anchors, but it's important to avoid installing anchors in the seams of concrete or brick and focus on the brick or stone itself.

The process of installing an anchor screw begins with marking the desired location and drilling a pilot hole. The specific type of anchor screw will dictate the need for a pilot hole, with some anchors, like self-drilling anchors, not requiring one. After inserting the anchor, a support screw is screwed into the anchor, ensuring that enough of the screw remains exposed to hang the desired item.

What are drywall anchors?

Drywall anchors are used to securely hang items such as framed pictures, mirrors, clocks, and shelving on walls. Nails and screws are not suitable for walls made of drywall, panelling, and tile, as they can easily slip out. Drywall anchors are a type of fastener that helps distribute weight evenly and provides additional reinforcement. They are especially useful for hanging heavy items such as cabinets, shelves, and mirrors.

There are several types of drywall anchors, including plastic or screw-in anchors, molly bolts, hollow wall anchors, self-drilling anchors, toggle bolts, and butterfly anchors. The most common drywall anchors are made of plastic, budget-friendly, and easy to use. They expand into the opposite sides of the wall for a secure hold.

To install a drywall anchor, start by drilling a pilot hole in the wall using a drill bit smaller than the width of the anchor. Place the anchor in the hole and tap it into the wall using a rubber mallet until it is completely inserted. For toggle bolts and steel hollow wall anchors, you will need to drill a larger pilot hole. Once the anchor is in place, use a screwdriver to drive the screw securely into the anchor.

It is important to choose the right type of drywall anchor depending on the weight of the item you are hanging. Some anchors are designed for heavier items, while others are meant for lightweight objects. Always check the weight limit of the drywall anchor and do not exceed it. For heavier items, it is recommended to use multiple anchors to distribute the weight evenly.

How to install drywall anchors

Installing drywall anchors is a simple process, but it's important to follow the correct steps to ensure a secure and long-lasting grip on the wall. Here's a detailed guide on how to install drywall anchors:

Step 1: Choose the Right Drywall Anchor

Before you begin, it's crucial to select the appropriate type of drywall anchor for your specific project. Different types of drywall anchors include plastic expansion anchors, self-drilling anchors, hollow wall anchors (also known as molly bolts), and toggle bolts. Each type of anchor has specific weight limitations and recommended usages. For example, plastic expansion anchors are typically used for lightweight items, while hollow wall anchors are more suitable for heavier objects. Refer to the manufacturer's instructions and weight guidelines to choose the best drywall anchor for your needs.

Step 2: Mark the Installation Spot

Use a pencil to mark the exact spot on the wall where you want to place the anchor. This mark will serve as a visual guide during the installation process. If you're installing multiple anchors, use a level and a tape measure or ruler to ensure that the markings are properly spaced and level.

Step 3: Drill the Pilot Hole

Fit your electric drill with a drill bit that corresponds to the size of the anchor you're installing. The drill bit should be slightly smaller than the width of the anchor. Hold the drill at a 90-degree angle to the wall and drill straight into the drywall. This will create a pilot hole for the anchor. If you don't have an electric drill, you can use alternative tools such as an awl, a hammer and nail-set, or a Phillips-head screwdriver to create the pilot hole.

Step 4: Insert the Drywall Anchor

This step may vary depending on the type of anchor you're using. For plastic expansion anchors, simply slip the anchor into the pilot hole and press it firmly by hand. For self-drilling anchors, place the tip of the anchor into the hole and twist it clockwise, either by hand or with an electric drill. For hollow wall anchors, tap the anchor into the drywall using a hammer until it's flush with the wall, then tighten the central screw with a screwdriver. For toggle bolts, guide the collapsible wings through the pilot hole, and then screw down the adjustable anchor head.

Step 5: Secure the Anchor with a Screw

Once the anchor is in place, use a screwdriver or electric drill to drive a screw securely into the anchor. This step will vary depending on the specific type of anchor and the object you're hanging. Make sure to follow the manufacturer's instructions for the best results.

Additional Tips:

• When hanging very heavy items, such as TVs, it's recommended to screw into at least one wall stud for added support.
• Always consider the weight limitations of the drywall anchors and choose the appropriate type for your project.
• If you're unsure about the size of the drill bit, it's better to start with a smaller bit and enlarge the hole if needed.
• Take your time during the installation process and work steadily to ensure accurate results.

Types of drywall anchors

While it is possible to hammer an anchor screw into the wall, it is not recommended. Drywall anchors are designed to securely hang items such as framed pictures, mirrors, clocks, and shelving on walls. Nails and screws are not made for walls such as drywall, paneling, and tile, and can easily slip out without the additional reinforcement that an anchor provides.

Plastic Ribbed or Screw-In Wall Anchors

These anchors have a sharp thread and a pointed tip on one end and a flange on the other. They expand within the wall when a screw is inserted. They are available in various sizes and lengths and are typically used for lighter items such as picture frames, small shelves, or light fixtures.

Molly Bolts or Anchor Screws

Molly bolts have a metal sleeve with a screw attached to one end and a toggle at the other. The underside of the molly wall anchor head has sharp tips that pierce the drywall surface. When inserted, the metal sleeve expands, providing a secure and stable anchor. Molly bolts are suitable for medium-weight objects that require more support, such as cabinets, curtain rails, and ceiling fixings.

Self-Drilling Wall Anchors

Self-drilling wall anchors are ideal for projects that require drilling through drywall. They feature sharp teeth on one end, so there is no need for pre-drilling. They provide greater support than expansion anchors but care must be taken when installing them as over-tightening can damage the drywall. Self-drilling anchors are made of plastic, nylon, or metal and come in different weight ratings.

Toggle Bolts or Drywall Toggle Anchors

Toggle bolts are among the strongest types of drywall anchors available. They consist of a bolt and a pair of spring-activated wings that open automatically when pushed through a hole. They are tightened using the included bolt, which spreads the load to support weights of 100 pounds or more. Toggle bolts are suitable for heavy shelving, cabinets, bookcases, and large ceiling fixings.

Strap Toggle Anchors

Strap toggle anchors combine a steel toggle with plastic ratchet straps and a threaded cap. They are easy to install and are rated for weights of 80 pounds or more, making them a good choice for TV mounts and ceiling drywall anchors.

How to select the proper anchor

Selecting the proper anchor is crucial to ensure the safety and stability of your hanging items. Here are some factors to consider when choosing the right anchor:

Weight of the Item

Before selecting an anchor, it's essential to consider the weight of the item you'll be hanging. Different types of anchors have varying weight limits, so choosing one that can safely support the weight of your item is crucial. For instance, if you're hanging a heavy item like a TV, cabinet, or mirror, go for anchors with higher weight limits, such as toggle bolts, molly bolts, or hollow wall anchors. For lighter items like small picture frames or shelves, plastic ribbed anchors or screw-in anchors will suffice.

Type of Wall

The type of wall you're dealing with will also determine the best anchor to use. Drywall, for example, is made of compressed gypsum and paper, making it unsuitable for nails and screws alone. In this case, drywall anchors are necessary to securely hang items. Other wall types, like hollow walls, concrete, brick, or masonry, may require specific anchors like hollow wall anchors, expansion anchors, or self-drilling anchors.

Wall Conditions

Consider the condition of your wall before selecting an anchor. If the drywall is patched or water-damaged, an anchor may not hold securely. Additionally, if you're dealing with old or damaged drywall or plaster, you may need to opt for a different type of anchor, such as a screw-in anchor, molly bolt, or toggle bolt.

Type of Anchor

There are several types of anchors available, each with its advantages and limitations. Here are some common types:

• Plastic Ribbed or Screw-In Anchors: These are typically used for lighter items like picture frames, small shelves, or light fixtures. They are easy to install and don't require pre-drilling.
• Molly Bolts or Anchor Screws: Molly bolts provide more support and are suitable for medium-weight objects. They have a metal sleeve with a screw on one end and a toggle on the other, which expands when inserted into the wall.
• Self-Drilling Anchors: These anchors are ideal for projects that require drilling through drywall. They offer greater support than expansion anchors but be careful not to overtighten them to avoid damaging the wall.
• Hollow Wall Anchors: Also known as "molly bolts," these anchors are suitable for hanging objects within the 25-50 lbs range. They come in various lengths, so be sure to choose the right size for your wall thickness.
• Toggle Bolts: Toggle bolts are excellent for hollow walls where expansion anchors may not work. They have collapsible wings that pop open behind the wall, providing a secure hold.

Installation Process

Consider the installation process for each type of anchor. Some anchors require pre-drilling, while others can be hammered or screwed directly into the wall. If you're not comfortable with drilling, opt for anchors that can be tapped or screwed in by hand.

Manufacturer's Guidelines

Always refer to the manufacturer's guidelines when selecting an anchor. The packaging should provide information on weight limits, recommended usages, and installation instructions. Following these guidelines will help ensure that your anchor is used correctly and safely.

Remember, when in doubt, it's better to choose an anchor with a higher weight limit and follow the instructions carefully to avoid any accidents or damage to your walls or hanging items.

Tips for hammering anchor screws into the wall

Before hammering anchor screws into the wall, it is important to determine the type of wall and the weight of the object you plan to hang. Different types of walls require different types of anchors and installation processes. Weigh your object and select an anchor with enough weight allowance.

Plaster Walls

For plaster walls, use a plastic expansion anchor for objects weighing under 20 pounds. A molly bolt is more suitable for heavier objects, over 20 pounds.

Drywall

For drywall, a threaded anchor screw is recommended for objects weighing less than 20 pounds. For heavier objects, a molly bolt is a better option. Hanging items on drywall ceilings is not recommended.

Concrete or Brick and Mortar Walls

For concrete or brick and mortar walls, use expansion anchors. Ensure that you only install anchors in the brick or stone itself, never in the grout. The weight capacity of the anchor will depend on the strength and condition of the wall.

Installation Process

Once you have selected the appropriate anchor for your wall type and object weight, follow these general steps for installation:

• Determine the exact location for your anchor and mark the spot with a pencil.
• Drill a hole at the marked spot, ensuring that the hole is deeper than the length of the anchor. Hold the drill perpendicular to the wall to ensure the anchor sits straight.
• Insert the anchor into the hole. You may need to use a hammer to lightly tap the anchor into the hole until it sits flush with the wall.
• Screw the support screw into the anchor, leaving enough of the screw exposed to hang your object.

For molly bolts, which are commonly used for heavier objects, insert the screw into the bolt before screwing it into the wall. Always hold the screwdriver or drill perpendicular to the wall to ensure a straight installation.

It is important to note that some anchors, such as self-drilling anchors, do not require a pre-drilled hole. Additionally, when hanging heavy objects, it is recommended to use multiple anchors to distribute the weight evenly.

Frequently asked questions