Wall anchors are rated for weight. These are available for hollow walls like drywall, paneling, and plaster and for solid materials like concrete, brick, and stone. The diameter of the drill bit you choose will depend on how big a hole you want to drill. In case you need to drill a hole and thread it for a screw or bolt. If no stud is handy, you'll need to use a wall anchor when hanging a heavy object -- such as a headboard, large framed art or a mirror -- on drywall. 260 lbs. 2. Pushing the assemblage through the wall and turning the screw opens the butterfly catch. Push the anchor in as far as it will go. Expansion Anchors. Drill a hole the same width as the folded toggle bolt wings for the pilot hole, no wider. If the drywall anchors are loose or no size is listed on the packaging, you can find the right drill bit size. If this is not something you think will work for you, another option is to look for the size etching at the base of the shank. 1/4". Never rely on a conical anchor to support a heavy load on drywall. As you tighten the bolt or screw, the wings will expand against the back of the drywall or, in the case of a molly bolt, the sleeve will expand against the sides of the hole to hold the bolt in place. 260 lbs. Hold the bits up to the anchor until you find the right size. As a landscape builder, he helped establish two gardening companies. Measure the diameter of a conical wall anchor approximately 1/4 inch away from the opening with an accurate ruler and choose a drill bit of that diameter to drill the hole for it. Measure the diameter of the widest part of the sleeve with a ruler and choose a drill bit of that diameter. When the anchor is fully inserted, the front edge of the lip should be flush with the wall. Use an Appropriately Sized Drill Bit. Drill the hole to the specified embedment depth plus minimum hole depth overall (see table below) to allow the thread tapping dust to settle, and blow it clean using compressed air. There's no give with the tile though. Generally with drywall, the anchor is a little bigger than the hole, and you just force it in and it works fine. Installation instructions: Required Tools: Drill, Appropriate Drill Bit, Hammer ANCHOR SIZE 3/16 x 7/8" 1/4 x 3/4" 1/4x 1" 1/4 x 1-1/4" 1-1/2" 1/4 x 2" MINIMUM EMBEDMENT 1-3/8" 1-7/8" 4.000 PSI CONCRETE 125 lbs. Wall Anchors; Compliance ... 6-8 x 3/4" Conical Plastic Anchor 3/16" Drill Size. The package will indicate the proper size drill bit to use. 285 lbs. 325 lbs. If not, measure the outside diameter of the shank of the anchor about halfway between the screw opening and the tapered end, and use a drill bit with that diameter. A plastic anchor with a wide flange on one end requires a drill bit the same width as the narrow portion of the anchor to create a pilot hole. Get a Hammer Drill. The wall anchor container and the drill bits for your drill will all be clearly marked with the same measurements, making it easy for you to determine which one to use. The diameter of the hole you drill should be slightly smaller than the diameter of the screw. Or you could be daring and try to drill the molly out. Drywall anchors; Make absolutely sure you get a drill bit set and not just one or two drill bits. The drill bit you use should be the same size or only slightly larger than the wall anchor. A 5mm alligator anchor fits a hole size of 3/16 inches. Drive Wall Anchors (1) DuoPower Nylon Anchors (2) Hollow Wall Anchors (2) Plastic Anchors (12) Borefast (13) Drive Wall Anchors (1) DuoPower Nylon Anchors (2) Hollow Wall Anchors (2) Plastic Anchors (12) Plastic Toggles (2) Ribbed Plastic Anchors … Not all anchors are the same size or even the same style, meaning there is not one standard size drill bit for every anchor installation. ANCHOR SIZE 3/16" DRILL SIZE 3/16" MINIMUM EMBEDMENT 1-3/4" MAXIMUM ALLOWABLE LOAD (LBS.) I am planning on hanging some things on my dry wall, but I have all these screws and anchors and I'm not sure what size anchor and drill bit I'm suppose to use? They are extremely strong and can be used in walls of varying thickness. NOMINAL DRILL DIAMETER NOMINAL DRILL DIAMETER 3/16 1/4 5/16 3/8 7/16 1/2 9/16 5/8 11/16 3/4 7/8 1 1-1/8 1-1/4.206 -.198.268 - .260.335 - .327.398 - .390.468 - .458.530 - .520.592 - .582.660 - .650.723 - .713.787 - .775.917 - .905 1.042 - 1.030 1.175 - 1.160 1.300 - 1.285 TOLERANCE BAND Drill a hole into concrete that is deeper than the anchor is long. Instead of the entire thing going into the wall, an outer ring provides a measure of water resistance to protect the installation point. Insert the sleeve into the hole as far as it will go and tap it with a hammer until the front edge of the opening is flush with the wall. Molly bolts and toggle bolt sleeves have barbs under the front lip that dig into the drywall to hold the sleeve in place. Once the anchor is pushed into the hole, flange end out, insert a screw of the gauge indicated on the anchor package. She enjoys exploring foreign locales and hiking off the beaten path stateside, snapping pics of wildlife and nature instead of selfies. © Copyright 2020 Hearst Communications, Inc. Use a drill bit that's the same size as the dry wall anchor. XLR. If you're using wall anchors as well as screws, the drill bit and anchors should have the same diameter. Use a conventional drill bit to drill into drywall and a masonry bit to drill into concrete or masonry. Push the anchor into the hole and tap it lightly with a hammer until it fits snugly and its end is flush with the wall. Your drill bit should nearly mirror the diameter of the anchor, but try to keep it a tad smaller. How to Drill Into an Exterior Plaster Wall, How to Convert Faucet Handles to Wall Hooks, How to Install a Coax Wall Plate for DirecTV, Ask the Builder: Wall Anchors for Concrete, Block & Drywall, This Old House: Choosing the Proper Fastener, How to Cover a Large Hole in a Brick Wall, How to Hang a Large Heavy Mirror on a Brick Wall. Use a drill bit that's the same size as the dry wall anchor. Screw the bolt that came with the molly bolt or toggle bolt into the sleeve or screw a wood screw into a plastic wing anchor. To use, remove the wings from the screw, place the hangable object on the screw if attaching it permanently to the wall, then add the wings to the screw so they open toward the screw head. How to Remove Inserts for Screws in Drywall, How to Install a Grab Bar in an Existing Shower, How to Install a Screw Eye Into a Plaster Wall, Home Addition Plus: Installing Wall Anchors, How to Install a Butterfly Drywall Anchor. The best way to drill a hole into concrete, concrete block, mortar and brick is to use a hammer drill. Sleeve anchors require a hole that is the same diameter as the anchor being installed. Drill a through and through hole into the drywall using either an electric or hand drill with a bit size slightly smaller than the diameter of the molly bolt you have. Mark the desired spots with a pencil, then break out your drill. The drill bit you use should match the center of the drywall anchor. 150 lbs. Expansion Wall Anchors. Drill the hole for the sleeve all the way through the drywall. If the type of anchor you select requires a pre-drilled pilot hole, you will also find the corresponding drill bit size on the package. The drill size chart below contains all commonly used centre drill bit sizes. Shop for Hollow Wall Anchors. Although these bolts have pointed ends that you can drive into the wall using a mallet or a hammer, a pilot hole will prevent accidental damage. When measuring toggle bolts and wing bolts, be sure the wings are folded up parallel to the sleeve before you measure. Kathy Adams is an award-winning journalist and freelance writer who traveled the world handling numerous duties for music artists. For reference, I grabbed a caliper and started measuring things. To use dry wall anchors, start by drilling a hole into the wall you're installing the anchors in at a 90-degree angle. In other words, use a 5.0 mm drill bit for a yellow plug, a 6.0 mm drill bit for a red plug, a 7.0 mm drill bit for a brown plug, or a 10.0 mm drill bit for a blue plug. All the fasteners shown here require a pilot hole to slip the fastener or anchor into. XSR - Extra Short Reach, SR - Short Reach, LR - Long Reach, XLR - Extra Long Reach. Measure the diameter of a conical wall anchor approximately 1/4 inch away from the opening with an accurate ruler and choose a drill bit of that diameter to drill the hole for it. © Copyright 2020 Hearst Communications, Inc. The anchor requires a pilot hole to be drilled in the wall first, however, to install it. To get the right-size hole, measure the shank of the drill bit against the front of the anchor -- its diameter should be the same size or 1/16 inch more than that to make the opening for the screw. These types of anchors aren't suitable for concrete or brick walls. These are on most if not all of the drill bits sold today. 5/8" - 1-3/16". Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. Drive a screw into the anchor and it will expand and wedge against the sides of the hole. You need the different sizes since drywall anchors come in all different shapes and sizes. Choose a drill bit that corresponds to the necessary pilot hole size for the wall plug you intend to use. Step 3 - … What Size Drill Bit to Use With Wall Anchors. If the diameter of the anchor is displayed on the packaging, drill the hole with a bit of the same diameter. A standard drill will do OK in soft brick and mortar, but it’ll just frustrate you and burn out bits … Think about drilling a pilot hole like playing the Price is Right — get the closest without going over. With that all out of the way, let’s get started! If the diameter of the anchor is displayed on the packaging, drill the hole with a bit … If you drilled the right size hole, you won't be able to get it all the way in without tapping it with a hammer. Toggle bolt anchors are some of the strongest anchors you can use. The drill bit size can be determined by using a drill bit size card. Toggle bolts and molly bolts can hold the most weight while conical anchors hold the least. Unscrew the bolt from the sleeve of a molly bolt or toggle bolt. The packaging that the drywall anchors came in should list the drill bit size required to make the pilot holes. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. To get the right-size hole, measure the shank of the drill bit against the front of the anchor-- its diameter should be the same size or 1/16 inch more than that to make the opening for the screw. The screw will expand the sides of the anchor out, securing it in the wall. Some packages of anchors even have the correct drill bit included with the packaging. Plastic wing anchors don't have bolts attached to them. First, you can size screws simply by inserting them into a hole then reading the marking. You can also determine the size of the drill bit based on the screws you want to use. 1-1/4" - 1-3/4". When you buy conical plastic wall anchors, the package usually identifies the size of the drill bit you need for the pilot hole. In the event that you encounter both exceptions listed above, go up two drill bit sizes. Plan the hole. Outward stress can pull it out of the hole. If you're drilling into drywall, drill all the way through it. A simple plastic drill chart sheet with perfect round holes and markings on it lets you do a couple of things. Then use a manual or … When hanging a heavy item, you should use a toggle bolt as they can hold well over 50lbs depending on the size of the anchor used and the thickness of the wall. Select a very sharp drill bit at least twice the size of the molly's screw. LR. She writes travel and budgeting tips and destination guides for USA Today, Travelocity and ForRent, among others. This forces the sides to expand and press against the backside of the wall … For instance, a non-tapered brass screw that’s size # 6 would use 3/32″ drill bit for softwood & 7/64″ drill bit for hardwood. In hollow walls these are driven into a pre-drilled hole and crimped by turning the included screw. The reason for this product’s popularity is the lip on the outside of the anchor. Most drill bits nowadays have diameters of between 1 mm and 20 mm. If you want to reuse the hole for a toggle, tap the anchor through the wall. If it's too small, the anchor won't fit, and if the hole is too large, it won't hold. 3/16" is 0.1875" The holes I drilled with the 3/16" bit are actually 0.225" and the widest part of the anchor is 0.245" -- almost 1/4"! Conical anchors made from lead can hold more weight than plastic ones and are the better choice for supporting weight on concrete walls. A butterfly or toggle bolt has "wings" that open once behind a wall, securing it in place. You can also size drill bits by pushing them through holes. Whether you're using a plastic wall anchor, a molly bolt or any other type of wall anchor, you'll need to drill a hole in the wall, and the size of the hole is critical to the proper functioning of the anchor. Drill through the tape and the wall. Use the same size drill bit as the diameter of the bolt. … Apart from that, there's no challenge to inserting a wall anchor, as long as you use one that will support the weight you plan to put on it. ing drill tolerances to anchor dimensions. A plastic anchor with a wide flange on one end requires a drill bit the same width as the narrow portion of the anchor to create a pilot hole. Fastenal Part No. If you don’t have an electric drill, press the tip of a Philips head screwdriver against the wall and twist it … Then select a toggle bolt sized to easily span the now gaping hole! This card allows you to find the size by measuring it with the indents in the card. That allows for us to accommodate both the softer material and the non-tapered screw tip. A drill bit size hole card can be very helpful for this. You use should be flush with the packaging should nearly mirror the diameter of the hole and off. 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