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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. 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? … To use dry wall anchors, start by drilling a hole into the wall you're installing the anchors in at a 90-degree angle. Drill through the tape and the wall. Think about drilling a pilot hole like playing the Price is Right — get the closest without going over. All the fasteners shown here require a pilot hole to slip the fastener or anchor into. Wall anchors are rated for weight. As a landscape builder, he helped establish two gardening companies. These types of anchors aren't suitable for concrete or brick walls. 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. Instead of the entire thing going into the wall, an outer ring provides a measure of water resistance to protect the installation point. 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. Select a very sharp drill bit at least twice the size of the molly's screw. The best way to drill a hole into concrete, concrete block, mortar and brick is to use a hammer drill. When measuring toggle bolts and wing bolts, be sure the wings are folded up parallel to the sleeve before you measure. Once the anchor is pushed into the hole, flange end out, insert a screw of the gauge indicated on the anchor package. Drill the hole for the sleeve all the way through the drywall. Use a drill bit that's the same size as the dry wall anchor. 5/8" - 1-3/16". 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. 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. What Size Drill Bit to Use With Wall Anchors. First, you can size screws simply by inserting them into a hole then reading the marking. If you don’t have an electric drill, press the tip of a Philips head screwdriver against the wall and twist it … They are extremely strong and can be used in walls of varying thickness. 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. With that all out of the way, let’s get started! Use an Appropriately Sized Drill Bit. Sleeve anchors require a hole that is the same diameter as the anchor being installed. When you buy conical plastic wall anchors, the package usually identifies the size of the drill bit you need for the pilot hole. 260 lbs. Toggle bolts and molly bolts can hold the most weight while conical anchors hold the least. Conical anchors made from lead can hold more weight than plastic ones and are the better choice for supporting weight on concrete walls. This forces the sides to expand and press against the backside of the wall … Mark the desired spots with a pencil, then break out your drill. Wall Anchors; Compliance ... 6-8 x 3/4" Conical Plastic Anchor 3/16" Drill Size. Step 3 - … 260 lbs. In the event that you encounter both exceptions listed above, go up two drill bit sizes. 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. If the diameter of the anchor is displayed on the packaging, drill the hole with a bit of the same diameter. The screw will expand the sides of the anchor out, securing it in the wall. Or you could be daring and try to drill the molly out. 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. Get a Hammer Drill. 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. Generally with drywall, the anchor is a little bigger than the hole, and you just force it in and it works fine. ing drill tolerances to anchor dimensions. For reference, I grabbed a caliper and started measuring things. Your drill bit should nearly mirror the diameter of the anchor, but try to keep it a tad smaller. Fastenal Part No. These are available for hollow walls like drywall, paneling, and plaster and for solid materials like concrete, brick, and stone. The packaging that the drywall anchors came in should list the drill bit size required to make the pilot holes. 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 drill bit size can be determined by using a drill bit size card. Toggle bolt anchors are some of the strongest anchors you can use. This card allows you to find the size by measuring it with the indents in the card. 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. Drill a hole into concrete that is deeper than the anchor is long. Shop for Hollow Wall Anchors. 1-1/4" - 1-3/4". Expansion Wall Anchors. In hollow walls these are driven into a pre-drilled hole and crimped by turning the included screw. 1/4". These are on most if not all of the drill bits sold today. 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. Pushing the assemblage through the wall and turning the screw opens the butterfly catch. Molly bolts and toggle bolt sleeves have barbs under the front lip that dig into the drywall to hold the sleeve in place. A simple plastic drill chart sheet with perfect round holes and markings on it lets you do a couple of things. 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. That you encounter both exceptions listed above, go up two drill bits bolt to! Holes and markings on it lets you do a couple of things you. Commonly used centre drill bit you use should be the same size drill bit that corresponds the... Anchors as well as screws, the anchor wo n't hold the molly 's screw how big hole. 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