Phone: 800.599.6926Email: anthony@portlandbolt.com. Lag bolts, Hex head, Hot dipped galvanized steel, 3/8" Lag bolt length is measured from under the head to the point of the bolt. @Dave – I am sorry, we do not have such an item. Tensile Strength (psi) 307A Low carbon steel: 1/4" thru 4" N/A: N/A: 60,000: No Markings: Grade 2 Low or medium carbon steel: 1/4" thru 3/4" 55,000: 57,000: 74,000: Over 3/4" thru 1-1/2" 33,000: 36,000: 60,000: 3 Radial Lines Boltport is a manufacturer of Lag Bolts in metric and imperial sizes with coarse, fine, extra fine, and custom threads to various dimensional standards and material specifications. Carriage bolts have a smooth, rounded head for a finished look. PowerLags® With just a few clicks, find the right screw for the right application, search our Screw Finder for the best multi-purpose screws, PowerLags ®, and specialty screws.. SPAX ® PowerLags® are the largest selection of code-recognized structural wood-to-wood screws for framing in the industry. End screws shall be located 6" from the end and at 1 1/2" to 2" from the bottom of the ledger. When installing lag screws into wood, it is important to have a pre-drilled pilot hole for ease of installation. US Bolts: Head Marking Grade and Material Nominal Size Range (inches) Mechanical Properties ; Proof Load (psi) Min. Does Portland produce a stainless steel torque washer for carriage bolts? What is the best rated lag bolts product? A machine bolt with washers under the head and nut, however, will provide increased rigidity and higher load-carrying capacity than a lag bolt. Lag screws are used in woodworking when standard wood screws are too short or too small. This bolt has a duplex coating that is 2X more corrosion resistant than galvanized fasteners and provides 4 layers of protection from sun, rain, snow, and chemicals. These are more commonly called machine screws. RSS Rugged Structural Screw. There are numerous technical specifications that must be considered when using Lag Shield Anchors, including diameter, internal thread length, minimum embedment and required hole size. Similar to wood screw pilot holes, a lag screw pilot hole should have a smaller diameter than the actual screw. lag screw connections for withdrawal (see 9.2.3 of Specification). 3/8” Lag Screw Replacement. How much do lag bolts cost? Standard fasteners are basic industrial fasteners - square and hex bolts, cap screws, carriage bolts, plow bolts, lag screws, studs, nuts, rivets and others - which have been standardized over the years as RSS Rugged Structural Screw is an easy to install lag alternative. Use of this site is subject to certain Terms Of Use. Special tooling can be created to produce nonstandard head dimensions or bolt heads with your company’s name and/or logo. They create their own mating thread in wood and other soft materials when tightened. Lag Bolts Screw These old workhorses are labor intensive but readily available. The best rated lag bolts product is the 1/4 in. They are designed to securely join wood pieces together in heavy load applications. Plow bolt x 6 in. 5/8" Hot dipped galvanized lag bolts feature a Hex Head and are designed to be driven with a wrench or hex driver. Timber Lag Screw (25 Per Box). Yield Strength (psi) Min. 3/8 in. original Disinfectant Spray-04650, Hydro Crunch Expanded Clay Growing Media Hydroponic 50 Liter 8 mm Aggregate Pebbles Pellets-803000. Ramesh Steel Corporation manufactures lag screws from 1/2" diameter through 1-1/2" … © 2000-2020 Home Depot Product Authority, LLC. x 1-3/4 in. Standard Galvanized Lags and Carriage Bolts: The most common method is to install ½” lag bolts with washers or carriage bolts with washers. 1/4 in. Portland Bolt & Manufacturing Company, Inc. Machine bolt: Image credit: Infly Industry Inc. Machine bolts are meant for assembling metal components through predrilled holes with an accompanying screw. Commonly used for decks, framing, retaining walls, and wooden playground equipment. Powerlag Hex Drive Washer Head High Corrosion Resistant Coating Lag Screw, 1/4 in. diameter dowel-type fasteners (bolts, lag screws, and drift pins) were based on an empirical method prior to 1991. You can’t skip the pilot hole, there’s no cheating on the hole’s depth, and if something breaks, it’s an expensive mistake. LedgerLOK replaces lag screws and through-bolts, has been coated with a proprietary three-step coating process that protects against corrosion (even in pressure treated wood) and is ACQ approved. The Lag Shield Anchor is a great fastener when very hard (short) concrete or lower grade (long) concrete is a concern. W-Cut TM provides low installation torque which allows for fast driving and ease of install; Zip-Tip TM allows for faster penetration; Unique thread design draws two substrates together … Turf Builder Kentucky Bluegrass Mix Seed, Battery Operated Smoke and Carbon Monoxide Combination Detector with Voice Alarm and Ionization Sensor, 48 in. Portland Bolt provides anchor bolts and nonstandard construction The lag bolts are used in the home, as well as construction projects. Your email address will not be published. These variables could be the lag screw’s overall length or the actual species of wood being drilled into. Required fields are marked *. Lag Bolts Specifications. x 4 in. Portland Bolt manufactures lag screws from 1/2″ diameter through 1-1/2″ diameter in most ASTM, AASHTO, and SAE specifications. Lag screw threads are driven into wood, and therefore, do not receive a nut. Clear Acrylic Sheet, Lysol 19 oz. For screws located at least 2" but less than 6" from the end, use 50% of the load per screw and 50% of the table spacing between the end screw and the adjacent screw, and for screws located between 2" and 4" from the end, predrill using a 5/32" drill. Lag bolts are also called lag screws. Although the above chart is a useful guide, it is always recommended to contact an engineer regarding any questions or concerns for a specific application. While we aren’t masons ourselves, we hope to prevent you from having to call one. x 6 in. Lag Screws are hex head screws with thick shafts and coarse threads. A full point is unnecessary since a pilot hole nearly as large as the root diameter o… ... View | 1 2 Request Information Compare Items Search by Specification. Item # Item Name Head Size Style/Type Diameter Length; LAG141: N/A (LAG141) Lag Screw : N/A 7/16 in. These bolts are … EQUIVALENT METRIC BOLT SUBSTITUTION – ASTM GRADE BOLT SIZES F - 568 CLASS 4.6 F - 568 CLASS 8.8 F - 588 CLASS 8.8.3 F - 568 CLASS 9.8 F - 568 CLASS 10.9 A - 325M TYPE 1 OR 2 A - 325M TYPE METRIC ENGLISH 3 (MM) (INCHES) If a lag screw with a 5/16-inch shaft is installed correctly, it can withstand pull-out, or withdrawal, of up to 212 pounds in close-grain hem, fir and redwood, and up to 266 pounds in larch Douglas fir, according to information from the American Wood Council. Lag screws have thick shafts and coarse threads to firmly grip wood boards, studs and similar pieces. x 1-3/4 in. Star Drive Washer Head RSS Structural Screws (50-Pack), 3/8 in. Refer to American Society of Mechanical Engineers Standard ASME B18.2.1, Square and Hex Bolts and Screws, for specifications relating to lag bolts. Structurally rated lag bolts screws are available, but most home centers carry generic versions of varying quality. Your email address will not be published. Typically the threads are 90 deg to the shaft on the topside and something around 60 deg to the shaft on the bottom to give them withdrawal bite. x 3-1/2 in. Lag and Through-Bolt Replacement. There is no need to predrill with TimberLOK. Use hex head lag screws and other wood screws from Grainger to securely join wood pieces. This theoretical method was adapted for the 1991 edition of the National Design Specification for Wood A lag screw can have as much as a nine times greater bonding factor to wood than a regular nail. Hex Zinc Plated Lag Screw (25-Pack) - page 2. Note: Thread length on lag bolts can vary. The built-in washer head eliminates the need for an additional washer, saving time and money. x 4 in. Timber Lag Screw (25 Per Box), 7 lb. x 5 in. They cost more but are stronger and avoid the rusting and corrosion problems of steel bolts. Sign up for our bi-monthly email newsletter for all the latest! When referring to standards and specifications, we will use only the well-known initials of the above societies-ANSI, ASME, IFI, ASTM and SAE. Cap says "BDM" Made in China, so who knows for sure. Thus, we created a chart for drilling pilot holes for lag bolt shield anchors. Powerlag Hex Drive Washer Head High Corrosion Resistant Coating Lag Screw, 5/16 in. I would recommend the stainless steel bolts. # Length Buy Each They can also be used in concrete, but require a special insert, called a lag. Products shown as available are normally stocked but inventory levels cannot be guaranteed, For screen reader problems with this website, please call 1-800-430-3376 or text 38698 (standard carrier rates apply to texts), #10 x 3-1/8 in. All Rights Reserved. Unless otherwise specified, nonstandard lag screws manufactured by Portland Bolt will possess a semi-cone point rather than a gimlet or cone point. In stock and ready to ship. Choose from our selection of ASTM A307 bolts, including over 600 products in a wide range of styles and sizes. Made from Grade 8 steel, these bolts can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. Fastening a lag bolt to a masonry base is no easy task. Norwood Screw Machine provides these bolts in a variety of material for diverse applications. Hot Dipped Galvanized lag bolts are typically used in heavy duty carpentry applications including lumber framing and anchoring equipment to wood such as machinery and large vices. Add All Entered. RSS Alternative Lag Screw, 1/2 in. Research conducted during the 1980s resulted in lateral resistance values that are currently based on a yield model theory. T-Star Washer Head Exterior HCR PowerLag Screw, 3/8 in x 8 in. The reason for this lies in the definition of torque when discussing threaded fasteners. These are wood lag bolts. fasteners, Anchor Bolt and Construction Fastener Manufacturer, https://www.portlandbolt.com/about/team/anthony-porreco/. Lag Screws can also be used in masonry if combined with a lag shield. 3 ⁄ 8. The square neck keeps these bolts from turning when tightening a nut. Below is a chart with recommended pilot hole diameters for a given diameter of lag screw: It is important to keep in mind that there are variables that could change the required pilot hole dimensions. This creates a snug fit, which allows the teeth of the lag screw to dig into the walls of the pilot hole. Lag Bolts are heavy profile hexagon head bolts with full or partial thread configurations. Most lag bolts range from $10 to $800 in price. Need Help? x 6 in. T-Star Washer Head Exterior HCR PowerLag Screw, Lag Screws are hex head screws with thick. x 8 in. 15 ⁄ 64. N/A 1 in. x 5 in. RE: Lag Bolt Specification Signious (Industrial) 22 Jun 15 21:59 Every heavy duty lag bolt I have used requires pre drill to ~5/8 shaft dia and hammer in. TimberLOK is a heavy duty wood screw for applications such as attaching rafter or trusses to the top plate, landscape timbers, fences, decks, headers, stair stringers and more. Shank (Unthreaded) Portion, inches. 9.1 -2-Fabrication and Assembly c 9.1.2.1 Provisions relating to the clearance hole of the shank and the lead hole size for the threaded portion of the lag screw have been part of the Specifi- A lag screw subjected to … Features. Torx Powerlag T-Star Drive Washer Head Yellow Zinc Coated Lag Screw, 1/4 in. Powerlag Hex Drive Washer Head High Corrosion Resistant Coating Lag Screw, 3/8 in. Click on a product # for additional info. N/A Hexagonal Head : N/A 1/4 in. The thing I like best - the stainless steel lag bolts have sharper well defined threads which cut nicely into a properly pre-drilled pilot hole for a superior holding power. Local store prices may vary from those displayed. x 96 in. Save my name, email, and website in this browser for the next time I comment. Below is a chart with recommended pilot hole diameters for a given diameter of lag screw: Nominal Diameter of Lag Bolt, inches. A lag bolt, or lag screw, is a type of fastener used for making mechanical connections between two pieces of wood to ensure that they are held together securely.These bolts are often used to fasten large beams and posts used for decking, wooden bridges, and other wooden structures. You will usually need the length of the bolt to be at least 4”- 6" to penetrate through the 2x ledger board, the house sheathing and … Part wood screw & part bolt—lag screws are a beast of their own. Standard Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60 000 PSI Tensile Strength: A354 - 17e2: Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners: A394 - 08(2015) Standard Specification for Steel Transmission Tower Bolts, Zinc-Coated and Bare: A449 - 14 TimberLOK replaces 3/8" lag screws and is approved for use in ACQ pressure treated lumber. We would like to show you a description here but the site won’t allow us. Prod. The minimum length of thread shall be equal to 1/2 the nominal screw length plus 0.50 in., or 5.00 in., whichever is shorter. Torx Powerlag T-Star Drive Washer Head Yellow Zinc Coated Lag Screw, 1/4 in. x 6 in. Lag bolts screws require you to predrill two holes: one for the threads and a larger clearance hole for the shaft. Powerlag Hex Drive Washer Head Zinc Coated Lag Screw, 1/4 in. There are no published specifications for the amount of torque required when turning the head of a lag screw. Lag bolts are most often used to link components to each other. The coarse threads are designed for pre-drilled holes to prevent splitting or snapping, and a hex drive offers controlled traction with a socket or wrench. Some shorter lengths will be fully threaded. There are no documented torque values for lag bolts or screws. I assume they are good for about 100 pounds pullout when fully embedded in pine wood. To put it simply, torque is a measure of the twisting force required to spin a nut up along the threads of a bolt. Please call us at: 1-800-HOME-DEPOT (1-800-466-3337), Please enter in your email address in the following format: you@domain.com. ORDERING INFORMATION ZINC PLATED PART # SIZE QUANTITY / BOX 3HLS14100 1/4 x 1 100 / BOX 3HLS14114 1/4 x 1-1/4 100 / BOX T-Star Washer Head Exterior HCR PowerLag Screw, 1/4 in. 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Made in China, so who knows for sure 25-Pack ) - page 2 have a smaller diameter the... No easy task Head lag screws can also be used in concrete, but most home centers generic! Require a special insert, called a lag Screw, 1/4 in subject to certain Terms of use predrill holes... Too short for this formula shall be threaded as close to the Head practicable..., as well as construction projects HCR powerlag Screw, 1/4 in have thick shafts and coarse threads to grip! Diameter than the actual Screw most lag bolt specifications, AASHTO, and wooden equipment! Into wood, and wooden playground equipment the reason for this lies in the home, as as! Diverse applications, studs and similar pieces therefore, do not receive a nut all the latest: 7/16!
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