Concrete screws no pre drilling

Tapcon+ unmatched performance in concrete, block and brick applications make them an excellent alternative to expansion anchors, plugs, lag shields and have a blue corrosion resistant coating that enables them to withstand the harshest conditions. That’s why when pros look for quality, strength and ease of installation, they choose Tapcon. SPAX ® PowerLags® are the largest selection of code-recognized structural wood-to-wood screws for framing in the industry. Featuring SPAX ® patented thread technology, they require no pre-drilling, and drive faster and easier than conventional lags and other structural lag screws. hard cums Self-drilling Screws at Lowes.com Hardware /Fasteners /Screws 529 products in Self-drilling | Screws Popular Categories Drywall Screws Wood Screws Deck Screws Lag Screws Machine Screws Specialty Screws Sort & Filter (1) Sort & Filter (1) Sort By Featured Best Sellers Highest Rated New Arrivals Departments Specialty Screws (184) Wood Screws (118)Concrete Screws No Pre Drilling - China Factory, Suppliers, Manufacturers We'll make every effort and hard work being outstanding and excellent, and speed up our techniques …Simply drill a hole into the concrete, hold the fixture you’re fastening over the hole, then use a hammer to tap the anchor into the hole. As you drive in the pin, the sleeve expands outward,...Remove any concrete dust, then press the anchor into the hole until it is flush with the surface. If necessary, tap in lightly with a hammer. Insert the concrete screw into the anchor and drive into the wall until secure. Don't worry if you don't own all of the tools needed to complete this DIY project. dadeeschools Concrete screws also require no anchors or expansion caps; simply drill into the concrete, insert the screw, and fasten with a screwdriver. Additionally, concrete screws can be quickly removed, without damaging the material like concrete anchors can, just by unscrewing them.Some of the most reviewed products in Anchors are the Tapcon 1/4 in. x 3-1/4 in. Hex-Washer-Head Concrete Anchors (75-Pack) with 1,484 reviews and the Tapcon 3/16 in. x 1-1/4 in. Hex-Washer-Head Concrete Anchors (75-Pack) with 764 reviews. What are a few brands that you carry in Anchors? We carry Simpson Strong-Tie, Tapcon, Hilti and more. estes express jobs Tapcon+ unmatched performance in concrete, block and brick applications make them an excellent alternative to expansion anchors, plugs, lag shields and have a blue corrosion resistant coating that enables them to withstand the harshest conditions. That’s why when pros look for quality, strength and ease of installation, they choose Tapcon.Simply drill a hole into the concrete, hold the fixture you’re fastening over the hole, then use a hammer to tap the anchor into the hole. As you drive in the pin, the sleeve expands outward,...Caliburn™ Concrete Screws are heavy duty concrete and masonry fastener. Star drive eliminates stripping for improved productivity. Heavy duty threads lock into concrete and can be removed and reinserted without screw damage. Where to Buy. Product Information. Related Products. uscis news updateThe 612 Cloud Hanging Structural Screw Anchor & Eye Bolt is an option for the uppermost connection point to concrete ceiling structures for cloud systems. This a commonly used Screw Anchor (KH-EZ I, manufactured by Hilti), designed to attach 1/4" - 20 threaded rod or a eye bolt, to a concrete surface. Ceiling Structural Connection Options.Meruzy Stainless Steel Pergola Post Base Brackets - Heavy Duty Wood Post Support Kit - Modular Sizing Gazebos Brackets for 6 x 6 Lumber (Actual Size 5. Available in white, and two (2) sizes: 4'x8′ and 8'x8′. robertcdf Registered Joined Nov 11, 2005 655 Posts #4 · Apr 30, 2013. All wood screws for attaching the 6x6's are. pedicure price near me Do you need to pre-drill for Caliburn™ screws? Yes, Pre-drilling is required for installation of Caliburn in concrete and masonry applications. What is Climatek™ Coating? The GRK Climatek coating provides superior corrosion resistance, allowing the screw to be used in both interior and exterior applications as well as pressure treated lumber.DeWALT 8 x 100mm Blue Tip Galvanised Countersunk Screw Bolt - 50 Pack. (0) $85. Compare. DeWALT 12 x 80mm Blue Tip Galvanised Hex Screw Bolt - 25 Pack. (0) $61 .60. Compare. DeWALT 10 x 60mm Blue Tip Galvanised Hex Screw Bolt - 50 Pack.We believe in making a permanent relationship with our customers by providing them with superior quality Concrete Application Self Drilling Screws.Makita. makita cordless vacuum cleaner. electric screw driver cordless. drill machine full set makita. drill battery makita original. hammer drill for concrete. Compact and Ergonomic Design at Only 193 mm Long. Ball bearing reduces bit wobbling. Variable 2-speed 0-4500-1,700 RPM for a wide range of drilling, fastening and hammer drilling applications. 0-25,500 IPM for fast hammer drilling in ...How To Install Deck Railing Posts. 0 kW 4x4 4WD 1250: From 1963 Until 1969. connecting 4x4 post to 2x6. What I did was drill axial holes in the center of the 4 X 4 ; push in one foot lengths copper tubing ( or steel conduit) halfway. At one time this porch had a covering, but now it is open. 02: Types of Deck Beam to Post Connections. amazon women's dresses The guidelines for masonry screw anchors are as follows: the 3/16” diameter requires the hole diameter to be equal to 5/32” and the 1/4” diameter requires a 3/16” …The average depth to drill your concrete screws is typically ¼ inch deeper than the length of your screw. You should not drill your pilot hole any deeper than ¾ inch to avoid …Drilling Concrete 1 Mark the drilling spot. Mark the point on the wall where you want to drill using a soft pencil with a small dot or cross. 2 Drill a pilot hole. Place your drill on the mark and drill briefly, using a low speed (if your machine has speed control) or in short bursts (if it doesn't). dell dispatch status Drill, measure and insert remaning screws As a replacement for lag screws, Grip-Rite Structural Screw type 17 tip offers both efficiency and time savings by eliminating the need to pre-drill. - Wise Pre-drill holes for each foot using a ½" bit Pre-drill holes for each foot using a ½" bit. The length of your bolts or screws should be at ...Are concrete screws self tapping? Self-tapping screws are concrete screws that tap threads into the base material such as concrete, brick or block. A hole must first be drilled into the base material and, as the concrete screw is inserted into the hole, the threads are tapped. There are many brand names of concrete screws on the market today.Fang bolts or rail anchor bolts have also been used for fixing rails or chairs to sleepers. The fang bolt is a bolt inserted through a hole in the sleeper with a fanged nut that bites into the lower surface of the sleeper. For fastening flat-bottomed rails, an upper-lipped washer can be used to grip the edge of the rail. best restauranrs near me How to Install Tapcon Masonry Concrete Screws | Fasteners 101 - YouTube In this video, one of our resident fastener specialists discusses concrete masonry screws, including Tapcon screws,...No need to pre-spot holes and no inserts are required; Reversible and removable, can be installed close to an edge; Tapcons can be installed with both the ...Dec 5, 2022 · Do I need to pre drill for concrete screws? - Super What How To Use Tapcon Concrete Screws Watch on Yakima EyeBolts - How to fit Watch on How to Install Anchor in Concrete Watch on How to Install Concrete Wedge Anchors Watch on How-To Guide to Select and Install Eye Bolts Watch on How To Drill Screw Into Concrete Easy Simple Watch on 24 hour fintess near me Screws used in woodworking will have a pointed tip to help guide the screw into a precise location. Self-drilling screws have a split point that cuts into the wood like a drill bit. Other screws, such as machine screws have no point. Self-drilling (self tapping) screw tip. A machine screw (on the right) doesn't have a pointed tip.48 products in Self-tapping | Specialty Screws Popular Filters Metal to metal Length Measurement: 1-1/4-in Self-drilling Length Measurement: 1-in Length Measurement: 3/4-in Length Measurement: 1-1/2-in Sort & Filter (1) Sort & Filter (1) Sort By Featured Best Sellers Highest Rated New Arrivals Length Measurement 3/8-in (3) 7/16-in (5) 1/2-in (3) houses for sake One-piece self-tapping concrete screw with ICC-ES Approval. For use in a variety of base materials including wood. Coated in a corrosion resistant Perma-Seal coating with an optimised thread design for low installation torque. Also incorporates a gimlet drill point for wood, no pre-drilling required. Technical Specification Delivery detailsThe most common wood screws are number 6, 8, and 10, the larger the number the bigger the thickness. I almost always use #8 diameter screws. Longer screws are usually #10s. Common wood screw diameters. In the U.S. threads are sometimes indicated in threads per inch, usually 24 or 32 tpi.What is the top-selling product within Self-Drilling Screws? The top-selling product within Self-Drilling Screws is the Teks #12 x 2-3/4 in. Plymetal Zinc-Plated Steel Flat-Head Phillips Self-Tapping Screws with Wings (200-Pack). What are the shipping options for Self-Drilling Screws? All Self-Drilling Screws can be shipped to you at home.Do You Really Need To Pre Drill Your Holes? STOP DOING THIS Do you have to pre drill your holes for fasteners? We tell you when you should pre drill Show more Show more …The anchor is corrosion resistant. A pre drilled hole is required. Kit include. Blue-zinc Phillips pan head tapping screw M4*2530PCS). Blue-zinc Phillips pan head tapping screw M4*3020PCS). Iron plated nickel Phillips pan head tapping screw M4*4010PCS). Iron plated nickel Phillips pan head tapping screw M5*4020PCS). Iron-plated nickel cross couConcrete screws no pre drilling featured products Marvel Stainless Concrete Screw The high thread with a notched cutting surface strongly cuts concrete, blocks, bricks, etc., … lexapro reddit These screws cannot drill through metal and require a pilot hole to be pre-drilled before installation. A pilot hole is created by using a drill bit which is slightly smaller than the screw and the threads of the screw tap the metal or wood while the screw is being installed. This tapping action keeps the material fastened together. craigslist delray beach jobs A hex nut in smaller sizes for machine screw diameters under 1/4. Search: Lag Screw Allowable Load Data. Pack of 50 No pre-drilling necessary Screws tap their own threads. Images for Reference only Black Oxide 1 item. Anisotropic Filtering: Disabled. socket head cap screws, including over 5,300 products in a wide range of styles and sizes. Simply drill a hole into the concrete, hold the fixture you’re fastening over the hole, then use a hammer to tap the anchor into the hole. As you drive in the pin, the sleeve expands outward,...Tapcon+ unmatched performance in concrete, block and brick applications make them an excellent alternative to expansion anchors, plugs, lag shields and have a blue corrosion resistant coating that enables them to withstand the harshest conditions. That’s why when pros look for quality, strength and ease of installation, they choose Tapcon. bband t near me The Galvanised Screw Bolts is used to anchor into concrete, brick and blocks.Screw Bolts are ideal for fastening into Hollow Bricks. The Galvanised Screw Bolt creates a thread into the material enabling the bolt to be removed without damage to the hole.The galvanised coating is suitable for most outdoor applications. Please see table below for grip range, drill size and hole depth.They screws are designed to drill a hole as they go so there is no need to pre-drill. Those gaps that you describe are actually a slot cut through the first few threads (where the screw is tapered) that creates a "one-time" drill bit that creates threaded hole. They work well in softwood, but can be problematic in hardwood. tv guide hobart ourguide Tapcon+ unmatched performance in concrete, block and brick applications make them an excellent alternative to expansion anchors, plugs, lag shields and have a blue corrosion resistant coating that enables them to withstand the harshest conditions. That’s why when pros look for quality, strength and ease of installation, they choose Tapcon.Incorporates a gimlet drill point for wood (no pre-drilling required) • The only concrete screw to meet the 2012 IBC and IRC standards for 4 different base ...45° pre-drill jigs are recommended for steel-to-wood connection applications to facilitate the use of 45° washers. 45° pre-drill jigs not only facilitate workflow-they also create precise 45° angles for the pilot holes at the correct locations in the wood members so that the screws line up with the washers. nvc case status login Concrete & Masonry Fasteners Sleeve Anchors Sleeve Anchors Browse by type: Galvanised Hex Sleeve Anchors Zinc Hex Sleeve Anchors Stainless Hex Sleeve Anchors Zinc Countersunk Sleeve Anchors Zinc Flush Head Sleeve Anchors Zinc Round Sleeve Anchors Hook/Eye Sleeve Anchors Stainless Flush Head Sleeve Anchors …A real simple technique I use is to hold up the drill bit and the screw. Hold the shaft of the drill bit up in front of the screw. You should only be able to see the threads of the screw (and maybe a bit of the screw). If you can't see the threads the drill bit is too big. If you can see too much of the screw, the bit is too small. malm bed frame full Drill With a Firm Hand and Maintain Steady Pressure. Good technique is essential for driving concrete screws. Not enough downward pressure and the bit could …Concrete screws are perfect for fixing directly into stone, masonry and concrete. Ideal for commercial and domestic use, masonry screws are perfect for using outdoors due to being anti corrosive making them long … 2004 dodge ram 3500 for sale Torx Concrete Screws 7.5mm x 80mmASP's frame fixing screws tap directly into brickwork, doing away with the need for plugs or nylon anchors.First, drill a hole using a hammer-drill or rotary hammer in the hammer mode. Second, switch your drill out of hammer mode and position the Tapcon anchor into a nut driver or onto a Phillips bit. Then drive the anchor into the pre-drilled hole until it is fully seated. For more information, click here . Caliburn XL Concrete Screws by GRK Fasteners are professionally engineered fasteners for concrete and similar applications. They feature a patented thread design for ease of driving the screw. The Caliburn™ XL … is.verizon down Lock into concrete. Low torque, smoother drive. No pre-drilling, ... Caliburn™ Concrete screws are professionally engineered fasteners with a patented ...CONFAST 3/16" x 1-1/4" Blue Flat Phillips Concrete Diamond Point Screw Anchor with Drill Bit for Anchoring to Masonry, Block or Brick (100 per Box).Unique 4CUT™ Point prevents splitting and requires no pre-drilling in wood Multiple Screw Styles Flat head for counter sinking "flush" applications Low-profile wafer head for applications requiring extra clamping force (ex. hanging cabinets plus door and window hardware / brackets) Pan head Zinc, yellow zinc, and HCR-X ® coating options hoover boyer funeral home obituaries This high performance wood screw is not your average screw. While it is designed for wood applications it is also functional for other materials like masonry, drywall, plastic, and up to 24ga steel. Masonry and Concrete do require pre-drilling. It is made with carbon steel and coated for durability to fasten strongly and securely.Tapcon 1/4-inch x 1-3/4-inch 410 Stainless Steel Slotted Hex Head Concrete Screw Anchors With Drill Bit- 10 pcs. They are excellent for use in heavy-duty ... 100 dollar bill series 1988 Aug 24, 2022 · Concrete Anchors and Screws Kit, 100Pcs Masonry Anchors and 100Pcs Masonry Screws with 1Pcs Drill Bit, Blue Conical Anchors and Self Tapping Screws for Stucco Concrete Masonry Brick Wall Brand: DYDUANG 5 ratings $1299 Get Fast, Free Shipping with Amazon Prime FREE Returns About this item Products 1 - 9 of 9 ... The concrete screw should be screwed slowly into the pre-drilled hole ... Reversible and removable blue concrete screws with no inserts ...There are many tried and tested methods for attaching something to concrete without drilling, including masonry nails, and powder-actuated fasteners, as well as various types of adhesives. The attachment method will depend on the size, shape, and weight of the item you're attempting to attach. rental box truck near me How To Screw A Board To Brick With Concrete Screws is easy with the right fasteners and tools. THE CUSTOM GATE PROJECT VIDEO LINK BELOW https://www.youtub...Our TOGE TSM PB enables quick and easy installation in aerated concrete, even without pre-drilling. At the same time, it still manages high service loads ... floor lamp targetTeks #12 x 1-in Gray Zinc-Plated Self-drilling Roofing Screws. Teks roofing screws provide secure metal to metal fastening with strong holding power, without the need to pre-drill. Engineered drill-point and flute remove material efficiently and properly size the hole for threads. Ideal for attaching roofing and wall panels to steel framing.Dec 5, 2022 · Do I need to pre drill for concrete screws? - Super What How To Use Tapcon Concrete Screws Watch on Yakima EyeBolts - How to fit Watch on How to Install Anchor in Concrete Watch on How to Install Concrete Wedge Anchors Watch on How-To Guide to Select and Install Eye Bolts Watch on How To Drill Screw Into Concrete Easy Simple Watch on Buy DeWALT Concrete Screws 6.3mm x 45mm, 4.8mm fixing hole DWT1410150 or other ... drill point for wood base materials meaning no predrilling is required ... discode.gift Can you use a regular drill for concrete screws? Use a Hammer Drill In some less dense materials like soft brick, you can drill pilot holes using a carbide-tipped bit in a regular drill. But in most cases, you’ll need a hammer drill. Can you screw concrete screws into concrete? Concrete screws are a quick and convenient way to fasten to concrete.Some of the most reviewed products in Anchors are the Tapcon 1/4 in. x 3-1/4 in. Hex-Washer-Head Concrete Anchors (75-Pack) with 1,484 reviews and the Tapcon 3/16 in. x … my kaspersky login Drill With a Firm Hand and Maintain Steady Pressure. Good technique is essential for driving concrete screws. Not enough downward pressure and the bit could slip off the head, especially if you’re using Phillips head screws. For the best results, keep constant pressure on the screw and run the drill at slow to medium speed.Caliburn™ Concrete Screws are heavy duty concrete and masonry fastener. Star drive eliminates stripping for improved productivity Heavy duty threads lock into concrete and can be removed and reinserted without screw damage Where to Buy Product Information Related Products FAQ'S Caliburn Concrete Screw Applications Wood to Concrete Framing used ford thunderbird for sale The 3/16” diameter masonry screw requires the use of 5/32” carbide tipped bit for drilling the hole. The 1/4” diameter requires the use of a 3/16” carbide tipped bit. Length of Bit The length of the bit used should allow the hole to be drilled a minimum of 1/2” deeper than the masonry screw will penetrate the base material.We cut our panels with an angle grinder. Remove the bracket and drill through the concrete. Fast Post Anchor: The innovative way to set fence posts. Length: 24 inches, Outer Dimension: 4" x 4" (Fit 3. (And no, I would not install the all-thread in fresh concrete. Easy to install in concrete with 1/2 inch diameter anchors.What is the top-selling product within Self-Drilling Screws? The top-selling product within Self-Drilling Screws is the Teks #12 x 2-3/4 in. Plymetal Zinc-Plated Steel Flat-Head Phillips Self-Tapping Screws with Wings (200-Pack). What are the shipping options for Self-Drilling Screws? All Self-Drilling Screws can be shipped to you at home. krunkr How To Screw A Board To Brick With Concrete Screws is easy with the right fasteners and tools. THE CUSTOM GATE PROJECT VIDEO LINK BELOW https://www.youtub...Caliburn™ Concrete Screws are heavy duty concrete and masonry fastener. Star drive eliminates stripping for improved productivity Heavy duty threads lock into concrete and can be removed and reinserted without screw damage Where to Buy Product Information Related Products FAQ'S Caliburn Concrete Screw Applications Wood to Concrete FramingThis item: HILTI X-EMTC-ZF22P8TH-3/4 00338762 3/4-Inch EMT Conduit Clips with Nail for Actuated Tool, (100-Pack) $44. This a commonly used Screw Anchor (KH-EZ I, manufactured by Hilti), designed to attach 1/4" - 20 threaded rod or a eye bolt , to a concrete surface. This item: HIlti 249700 Ceiling Clip Premium X-CC27 U22 P8 Direct Fastening. zillow coalinga Now imagine an analogous fastener for concrete. How long would the drill bit on the end of the screw section need to be? Would people be happy ...Caliburn™ Concrete Screws are heavy duty concrete and masonry fastener. Star drive eliminates stripping for improved productivity Heavy duty threads lock into concrete and can be removed and reinserted without screw damage Where to Buy Product Information Related Products FAQ'S Caliburn Concrete Screw Applications Wood to Concrete Framing christmas storage boxes with lids Tapcon 1/4-inch x 1-3/4-inch 410 Stainless Steel Slotted Hex Head Concrete Screw Anchors With Drill Bit- 10 pcs. They are excellent for use in heavy-duty ...Answer (1 of 2): Your box of screws should have needed instructions for how they are to be installed. If you need to ask such a question, then you need to buy new ...Versatile, high-performance screw anchor for concrete and masonry (carbon steel, countersunk flat head with Torx®) From $704.00 Compare KWIK-CON II+ Phillips countersunk flat head SS screw anchor premium Versatile, high-performance screw anchor for concrete and masonry (410 stainless steel, Phillips countersunk flat head) $1,716.00 Compare Tapcon Concrete screw anchors draw from its unique ability to TAP its own threads into Concrete, making it an excellent alternative to expansion anchors, plugs, and lag … anime app icons 2 thg 8, 2022 ... Concrete screws also feature a gimlet point, providing the “bite” for self-drilling into wood base materials, no need to pre-drill.A hex nut in smaller sizes for machine screw diameters under 1/4. Search: Lag Screw Allowable Load Data. Pack of 50 No pre-drilling necessary Screws tap their own threads. Images for Reference only Black Oxide 1 item. Anisotropic Filtering: Disabled. socket head cap screws, including over 5,300 products in a wide range of styles and sizes. abathing ape shirt Easydrive TX Countersunk Concrete Screws 7.5 x 120mm 100 Pack (9008H) out of 5 stars. (391) Flat Countersunk Head with 5 x Locking Ribs. Carbon Steel Construction. Zinc-Plated & Yellow-Passivated.Drill With a Firm Hand and Maintain Steady Pressure. Good technique is essential for driving concrete screws. Not enough downward pressure and the bit could …Use the #8 x 1/2 in. Lath Drill Point Screws Use the #8 x 1/2 in. Lath Drill Point Screws to securely fasten 20-Gauge/12-Gauge metal in stucco/plaster and other metal-to-metal fastening applications without needing to pre-drill. The screws feature engineered drill points and flutes that remove material efficiently and properly size the hole for ...Concrete screws are a quick and convenient way to fasten to concrete. The best thing about these screws is that you can screw directly into concrete without any need for hammering or an anchor or shield to install. All you have to do is drill a hole and drive in the screw. What are concrete screws called? eve lock time calculator Some of the most reviewed products in Anchors are the Tapcon 1/4 in. x 3-1/4 in. Hex-Washer-Head Concrete Anchors (75-Pack) with 1,484 reviews and the Tapcon 3/16 in. x …With over 20 different types of screws, our screws come in many materials such as aluminum, stainless steel, and steel ... Black Oxide Lag Screws, sometimes called Lag Bolts, usually have a square or hexagonal head and require a pre-drilled hole. ... TEKS® 12-24 x 3-in TEKS® Socket Wafer Head Self-Drilling Wood-to-Metal Screws, 100pcs.Concrete screws come in 3/16- and 1/4-inch diameter, in lengths up to 3-3/4 inches. Both hex-head and Phillips-head styles are available. They can be used in poured …The guidelines for masonry screw anchors are as follows: the 3/16” diameter requires the hole diameter to be equal to 5/32” and the 1/4” diameter requires a 3/16” … cryptoquip answers today Most of the time you will need to break the concrete apart using a sledge hammer or jack hammer and haul the Decks. Install plugs into the counterbored holes using hot-melt glue; trim the plugs flush with a. A massive concrete stoop will be difficult to remove. Evaluate the concrete’s condition before adding composite decking over a concrete ...Concrete is a tough material that requires the correct drill and anchor to ... As they are screwed into pre-drilled holes, the saw-tooth threads cut into ...Can you use a regular drill for concrete screws? Use a Hammer Drill In some less dense materials like soft brick, you can drill pilot holes using a carbide-tipped bit in a regular drill. But in most cases, you’ll need a hammer drill. Can you screw concrete screws into concrete? Concrete screws are a quick and convenient way to fasten to concrete. zillow mountain top pa Attaching Handrail To DeckDeck Railing: Installation, Construction, and Repair Services. Follow procedures 2-4 to install posts and decking. If you use a post base connector with fasteners (bolts or nails) that drive through the post, … watch full movie online hd print Remove any concrete dust, then press the anchor into the hole until it is flush with the surface. If necessary, tap in lightly with a hammer. Insert the concrete screw into the anchor and drive into the wall until secure. Don't worry if you don't own all of the tools needed to complete this DIY project. 19 thg 11, 2021 ... Concrete screws are a quick and convenient way to fasten to concrete. ... into pre-drilled 6mm pilot hole, no anchor or plug is needed. wellcare over the counter Sep 13, 2019 · Good technique is essential for driving concrete screws. Not enough downward pressure and the bit could slip off the head, especially if you’re using Phillips head screws. For the best results, keep constant pressure on the screw and run the drill at slow to medium speed. It takes a light touch to avoid snapping screws. When you find the right size bit, store it with the box of screws so you know which one it is. Hardware stores usually have a size gauge so you can take the bit there and have them ID the size. Buy a bulk pack of the commonly used sizes, because drilling with a dull bit is no fun. Drill bit sizes for pre-drilling (most commonly used sizes in bold)Remove any concrete dust, then press the anchor into the hole until it is flush with the surface. If necessary, tap in lightly with a hammer. Insert the concrete screw into the anchor and drive into the wall until secure. Don't worry if you don't own all of the tools needed to complete this DIY project. applications engineer salary