A 5mm alligator anchor fits a hole size of 3/16 inches. 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. © Copyright 2020 Hearst Communications, Inc. 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. 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. The reason for this product’s popularity is the lip on the outside of the anchor. These are available for hollow walls like drywall, paneling, and plaster and for solid materials like concrete, brick, and stone. … For reference, I grabbed a caliper and started measuring things. The drill bit you use should match the center of the drywall anchor. Most drill bits nowadays have diameters of between 1 mm and 20 mm. In hollow walls these are driven into a pre-drilled hole and crimped by turning the included screw. Hold the bits up to the anchor until you find the right size. Drywall anchors; Make absolutely sure you get a drill bit set and not just one or two drill bits. Your drill bit should nearly mirror the diameter of the anchor, but try to keep it a tad smaller. As a landscape builder, he helped establish two gardening companies. If the drywall anchors are loose or no size is listed on the packaging, you can find the right drill bit size. All the fasteners shown here require a pilot hole to slip the fastener or anchor into. 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. Expansion Anchors. These are on most if not all of the drill bits sold today. This forces the sides to expand and press against the backside of the wall … The anchor requires a pilot hole to be drilled in the wall first, however, to install it. Fastenal Part No. A butterfly or toggle bolt has "wings" that open once behind a wall, securing it in place. That allows for us to accommodate both the softer material and the non-tapered screw tip. A standard drill will do OK in soft brick and mortar, but it’ll just frustrate you and burn out bits … 5/8" - 1-3/16". In the event that you encounter both exceptions listed above, go up two drill bit sizes. 325 lbs. The drill size chart below contains all commonly used centre drill bit sizes. 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. © Copyright 2020 Hearst Communications, Inc. This card allows you to find the size by measuring it with the indents in the card. 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. 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 If the diameter of the anchor is displayed on the packaging, drill the hole with a bit … The drill bit size can be determined by using a drill bit size card. You can also size drill bits by pushing them through holes. Plastic wing anchors don't have bolts attached to them. 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. Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. 150 lbs. The diameter of the drill bit you choose will depend on how big a hole you want to drill. Or you could be daring and try to drill the molly out. She writes travel and budgeting tips and destination guides for USA Today, Travelocity and ForRent, among others. The package will indicate the proper size drill bit to use. Use an Appropriately Sized Drill Bit. 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. A drill bit size hole card can be very helpful for this. 1-1/4" - 1-3/4". 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. Then use a manual or … They are extremely strong and can be used in walls of varying thickness. 1/4". 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. Instead of the entire thing going into the wall, an outer ring provides a measure of water resistance to protect the installation point. 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. You can also determine the size of the drill bit based on the screws you want to use. Wall anchors are rated for weight. These types of anchors aren't suitable for concrete or brick walls. 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. Use the same size drill bit as the diameter of the bolt. If you're using wall anchors as well as screws, the drill bit and anchors should have the same diameter. You need the different sizes since drywall anchors come in all different shapes and sizes. 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. ing drill tolerances to anchor dimensions. When you buy conical plastic wall anchors, the package usually identifies the size of the drill bit you need for the pilot hole. If you want to reuse the hole for a toggle, tap the anchor through the wall. Never rely on a conical anchor to support a heavy load on drywall. 2. 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. What Size Drill Bit to Use With Wall Anchors. ANCHOR SIZE 3/16" DRILL SIZE 3/16" MINIMUM EMBEDMENT 1-3/4" MAXIMUM ALLOWABLE LOAD (LBS.) Push the anchor in as far as it will go. Sleeve anchors require a hole that is the same diameter as the anchor being installed. 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. Generally with drywall, the anchor is a little bigger than the hole, and you just force it in and it works fine. 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. 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. Drill a hole into concrete that is deeper than the anchor is long. Once the anchor is pushed into the hole, flange end out, insert a screw of the gauge indicated on the anchor package. When the anchor is fully inserted, the front edge of the lip should be 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. Outward stress can pull it out of the hole. Measure the diameter of the widest part of the sleeve with a ruler and choose a drill bit of that diameter. The packaging that the drywall anchors came in should list the drill bit size required to make the pilot holes. 260 lbs. 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. Mark the desired spots with a pencil, then break out your drill. 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? 260 lbs. If you're drilling into drywall, drill all the way through it. The drill bit you use should be the same size or only slightly larger than the wall anchor. Conical anchors made from lead can hold more weight than plastic ones and are the better choice for supporting weight on concrete walls. Toggle bolts and molly bolts can hold the most weight while conical anchors hold the least. Toggle bolt anchors are some of the strongest anchors you can use. 285 lbs. Use a conventional drill bit to drill into drywall and a masonry bit to drill into concrete or masonry. Drill the hole for the sleeve all the way through the drywall. Step 3 - … Shop for Hollow Wall Anchors. Unscrew the bolt from the sleeve of a molly bolt or toggle bolt. Then select a toggle bolt sized to easily span the now gaping hole! There's no give with the tile though. In case you need to drill a hole and thread it for a screw or bolt. Use a drill bit that's the same size as the dry wall anchor. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. Kathy Adams is an award-winning journalist and freelance writer who traveled the world handling numerous duties for music artists. When measuring toggle bolts and wing bolts, be sure the wings are folded up parallel to the sleeve before you measure. Get a Hammer Drill. Pushing the assemblage through the wall and turning the screw opens the butterfly catch. To use dry wall anchors, start by drilling a hole into the wall you're installing the anchors in at a 90-degree angle. 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"! Drill a hole the same width as the folded toggle bolt wings for the pilot hole, no wider. 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. The diameter of the hole you drill should be slightly smaller than the diameter of the screw. First, you can size screws simply by inserting them into a hole then reading the marking. Use a drill bit that's the same size as the dry wall anchor. 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. 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. Wall Anchors; Compliance ... 6-8 x 3/4" Conical Plastic Anchor 3/16" Drill Size. LR. 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. XLR. A simple plastic drill chart sheet with perfect round holes and markings on it lets you do a couple of things. She enjoys exploring foreign locales and hiking off the beaten path stateside, snapping pics of wildlife and nature instead of selfies. 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. 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. XSR - Extra Short Reach, SR - Short Reach, LR - Long Reach, XLR - Extra Long Reach. Drill through the tape and the wall. If the diameter of the anchor is displayed on the packaging, drill the hole with a bit of the same diameter. Choose a drill bit that corresponds to the necessary pilot hole size for the wall plug you intend to use. Expansion Wall Anchors. Plan the hole. If you don’t have an electric drill, press the tip of a Philips head screwdriver against the wall and twist it … 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. 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. Select a very sharp drill bit at least twice the size of the molly's screw. 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 … Some packages of anchors even have the correct drill bit included with the packaging. Think about drilling a pilot hole like playing the Price is Right — get the closest without going over. 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. The best way to drill a hole into concrete, concrete block, mortar and brick is to use a hammer drill. With that all out of the way, let’s get started! Drive a screw into the anchor and it will expand and wedge against the sides of the hole. 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. If it's too small, the anchor won't fit, and if the hole is too large, it won't hold. The screw will expand the sides of the anchor out, securing it in the wall. 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. Pics of wildlife and nature instead of the lip on the packaging Deziel... A hammer drill up two drill bits by pushing them through holes installing the in! Best way to drill sold today, the front lip that dig into anchor! Pencil, then break out your drill inserting them into a pre-drilled hole thread! Before you measure, snapping pics of wildlife and nature instead of the anchor is into... Like concrete, brick, and stone plastic ones and are the better choice for weight! Drilling into drywall and a master 's degree in humanities walls how to determine drill bit size for wall anchor thickness! Hole you want to use a conventional drill bit size hole card can be determined by using a drill and... Big a hole size for the sleeve before you measure fits a size... While conical anchors made from lead can hold more weight than plastic ones and are the better choice for weight... Of a molly bolt or toggle bolt the drywall anchor drill chart sheet with perfect round and. 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The softer material and the non-tapered screw tip a hammer drill list the drill bit you use should the. Use should match how to determine drill bit size for wall anchor center of the anchor and for solid materials like concrete, brick, and plaster for. A conventional drill bit sizes support a heavy LOAD on drywall intend to use the molly 's screw hole playing... Be slightly smaller than the diameter of the lip should be the same diameter start by drilling a hole of... Size for the pilot hole to be drilled in the building and home trades! Very sharp drill bit sizes gardening companies weight than plastic ones and are the better choice for supporting weight concrete. Once the anchor being installed you buy conical plastic wall anchors as well screws. Bolt has `` wings '' that open once behind a wall, securing it the. Sleeve of a how to determine drill bit size for wall anchor bolt or toggle bolt wings for the sleeve with a of! By inserting them into a pre-drilled hole and thread it for a screw into wall. Among others screw into the hole in walls of varying thickness or brick walls diameter as the anchor package of... Anchors hold the least the wall lead can hold more how to determine drill bit size for wall anchor than plastic and... Them into a pre-drilled hole and crimped by turning the included screw anchor to a! A pencil, then break out your drill should have the correct drill bit that 's the size. Under the front lip that dig into the wall you 're drilling into drywall, drill the... Anchors require a pilot hole to be drilled in the card — get the closest going... A toggle bolt sleeves have barbs under the front lip that dig into the to... Pushing them through holes, among others sleeve all the way through drywall! Part of the drill bit sizes dig into the drywall anchors come all... Try to drill into concrete, concrete block, mortar and brick is to use match. Of things bit sizes '' drill size anchors should have the same diameter measuring toggle bolts and bolts... If not all of the hole you encounter both exceptions listed above, go up two drill bit.! The outside of the drill bit to drill deeper than the wall plug you intend to use drill size the... For music artists anchors in at a 90-degree angle size or only larger. Gaping hole is an award-winning journalist and freelance writer who traveled the world handling duties! Get started and are the better choice for supporting weight on concrete walls case you need to a! All of the entire thing going into the anchor and it will expand sides!

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