Phone: 800.599.6926Email: anthony@portlandbolt.com. x 96 in. 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. While we aren’t masons ourselves, we hope to prevent you from having to call one. 3/8” Lag Screw Replacement. Clear Acrylic Sheet, Lysol 19 oz. Note: Thread length on lag bolts can vary. Lag bolts screws require you to predrill two holes: one for the threads and a larger clearance hole for the shaft. Star Drive Washer Head RSS Structural Screws (50-Pack), 3/8 in. Norwood Screw Machine provides these bolts in a variety of material for diverse applications. T-Star Washer Head Exterior HCR PowerLag Screw, 1/4 in. There are no published specifications for the amount of torque required when turning the head of a lag screw. Some shorter lengths will be fully threaded. Below is a chart with recommended pilot hole diameters for a given diameter of lag screw: Nominal Diameter of Lag Bolt, inches. Most lag bolts range from $10 to $800 in price. T-Star Washer Head Exterior HCR PowerLag Screw, Lag Screws are hex head screws with thick. Part wood screw & part bolt—lag screws are a beast of their own. RSS Rugged Structural Screw. This theoretical method was adapted for the 1991 edition of the National Design Specification for Wood 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. A full point is unnecessary since a pilot hole nearly as large as the root diameter o… RSS Alternative Lag Screw, 1/2 in. Lag Bolts are heavy profile hexagon head bolts with full or partial thread configurations. x 4 in. Powerlag Hex Drive Washer Head High Corrosion Resistant Coating Lag Screw, 3/8 in. 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. 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 … x 5 in. How much do lag bolts cost? Choose from our selection of ASTM A307 bolts, including over 600 products in a wide range of styles and sizes. Plow bolt 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. Does Portland produce a stainless steel torque washer for carriage bolts? To put it simply, torque is a measure of the twisting force required to spin a nut up along the threads of a bolt. There is no need to predrill with TimberLOK. The reason for this lies in the definition of torque when discussing threaded fasteners. The best rated lag bolts product is the 1/4 in. Lag Bolts Screw These old workhorses are labor intensive but readily available. Add All Entered. US Bolts: Head Marking Grade and Material Nominal Size Range (inches) Mechanical Properties ; Proof Load (psi) Min. N/A 1 in. Lag Bolts Specifications. RSS Rugged Structural Screw is an easy to install lag alternative. These are wood lag bolts. 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. Unless otherwise specified, nonstandard lag screws manufactured by Portland Bolt will possess a semi-cone point rather than a gimlet or cone point. Lag bolts are most often used to link components to each other. x 6 in. x 4 in. 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) These are more commonly called machine screws. Need Help? x 8 in. The Lag Shield Anchor is a great fastener when very hard (short) concrete or lower grade (long) concrete is a concern. Standard Galvanized Lags and Carriage Bolts: The most common method is to install ½” lag bolts with washers or carriage bolts with washers. They can also be used in concrete, but require a special insert, called a lag. Item # Item Name Head Size Style/Type Diameter Length; LAG141: N/A (LAG141) Lag Screw : N/A 7/16 in. The lag bolts are used in the home, as well as construction projects. This creates a snug fit, which allows the teeth of the lag screw to dig into the walls of the pilot hole. 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. 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. Turf Builder Kentucky Bluegrass Mix Seed, Battery Operated Smoke and Carbon Monoxide Combination Detector with Voice Alarm and Ionization Sensor, 48 in. 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. Carriage bolts have a smooth, rounded head for a finished look. In stock and ready to ship. 5/8" Hot dipped galvanized lag bolts feature a Hex Head and are designed to be driven with a wrench or hex driver. T-Star Washer Head Exterior HCR PowerLag Screw, 3/8 in x 8 in. I assume they are good for about 100 pounds pullout when fully embedded in pine wood. x 6 in. ORDERING INFORMATION ZINC PLATED PART # SIZE QUANTITY / BOX 3HLS14100 1/4 x 1 100 / BOX 3HLS14114 1/4 x 1-1/4 100 / BOX A lag screw can have as much as a nine times greater bonding factor to wood than a regular nail. 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 I would recommend the stainless steel bolts. Your email address will not be published. Prod. Torx Powerlag T-Star Drive Washer Head Yellow Zinc Coated Lag Screw, 1/4 in. x 6 in. # Length Buy Each 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. Portland Bolt manufactures lag screws from 1/2″ diameter through 1-1/2″ diameter in most ASTM, AASHTO, and SAE specifications. Fastening a lag bolt to a masonry base is no easy task. Local store prices may vary from those displayed. The built-in washer head eliminates the need for an additional washer, saving time and money. lag screw connections for withdrawal (see 9.2.3 of Specification). Your email address will not be published. Research conducted during the 1980s resulted in lateral resistance values that are currently based on a yield model theory. Screws too short for this formula shall be threaded as close to the head as practicable. Similar to wood screw pilot holes, a lag screw pilot hole should have a smaller diameter than the actual screw. @Dave – I am sorry, we do not have such an item. x 5 in. diameter dowel-type fasteners (bolts, lag screws, and drift pins) were based on an empirical method prior to 1991. They create their own mating thread in wood and other soft materials when tightened. Lag bolts are also called lag screws. © 2000-2020 Home Depot Product Authority, LLC. 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. They are designed to securely join wood pieces together in heavy load applications. Thus, we created a chart for drilling pilot holes for lag bolt shield anchors. x 1/8 in. 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. Powerlag Hex Drive Washer Head Zinc Coated Lag Screw, 1/4 in. Use of this site is subject to certain Terms Of Use. A hex head lag screw is a wood screw that is driven with a wrench instead of a screwdriver. 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. Ramesh Steel Corporation manufactures lag screws from 1/2" diameter through 1-1/2" … What is the best rated lag bolts product? All Rights Reserved. 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. Sign up for our bi-monthly email newsletter for all the latest! Structurally rated lag bolts screws are available, but most home centers carry generic versions of varying quality. There are no documented torque values for lag bolts or screws. Yield Strength (psi) Min. original Disinfectant Spray-04650, Hydro Crunch Expanded Clay Growing Media Hydroponic 50 Liter 8 mm Aggregate Pebbles Pellets-803000. Torx Powerlag T-Star Drive Washer Head Yellow Zinc Coated Lag Screw, 1/4 in. Lag screws are used in woodworking when standard wood screws are too short or too small. These bolts are … 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. 15 ⁄ 64. Timber Lag Screw (25 Per Box). 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. Portland Bolt & Manufacturing Company, Inc. A machine bolt with washers under the head and nut, however, will provide increased rigidity and higher load-carrying capacity than a lag bolt. They cost more but are stronger and avoid the rusting and corrosion problems of steel bolts. N/A Hexagonal Head : N/A 1/4 in. When installing lag screws into wood, it is important to have a pre-drilled pilot hole for ease of installation. Made from Grade 8 steel, these bolts can be used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. 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. These variables could be the lag screw’s overall length or the actual species of wood being drilled into. Hex Zinc Plated Lag Screw (25-Pack) - page 2. x 1-3/4 in. Machine bolt: Image credit: Infly Industry Inc. Machine bolts are meant for assembling metal components through predrilled holes with an accompanying screw. TimberLOK replaces 3/8" lag screws and is approved for use in ACQ pressure treated lumber. Portland Bolt provides anchor bolts and nonstandard construction Click on a product # for additional info. Refer to American Society of Mechanical Engineers Standard ASME B18.2.1, Square and Hex Bolts and Screws, for specifications relating to lag bolts. 1/4 in. Diameter of Pilot Hole, inches (Thread Portion) 3 ⁄ 8. Powerlag Hex Drive Washer Head High Corrosion Resistant Coating Lag Screw, 1/4 in. Save my name, email, and website in this browser for the next time I comment. Lag Screws are hex head screws with thick shafts and coarse threads. Powerlag Hex Drive Washer Head High Corrosion Resistant Coating Lag Screw, 5/16 in. Lag Screws can also be used in masonry if combined with a lag shield. ... View | 1 2 Request Information Compare Items Search by Specification. 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. 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 3/8 in. We would like to show you a description here but the site won’t allow us. 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. When referring to standards and specifications, we will use only the well-known initials of the above societies-ANSI, ASME, IFI, ASTM and SAE. Lag and Through-Bolt Replacement. x 1-3/4 in. 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. Use hex head lag screws and other wood screws from Grainger to securely join wood pieces. x 6 in. Special tooling can be created to produce nonstandard head dimensions or bolt heads with your company’s name and/or logo. 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 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 … x 3-1/2 in. 3 ⁄ 8. Lag screw threads are driven into wood, and therefore, do not receive a nut. Required fields are marked *. 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. Lag screws have thick shafts and coarse threads to firmly grip wood boards, studs and similar pieces. fasteners, Anchor Bolt and Construction Fastener Manufacturer, https://www.portlandbolt.com/about/team/anthony-porreco/. 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. Shank (Unthreaded) Portion, inches. 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. The square neck keeps these bolts from turning when tightening a nut. Cap says "BDM" Made in China, so who knows for sure. Timber Lag Screw (25 Per Box), 7 lb. End screws shall be located 6" from the end and at 1 1/2" to 2" from the bottom of the ledger. Commonly used for decks, framing, retaining walls, and wooden playground equipment. Timberlok replaces 3/8 '' lag screws can also be used in concrete, but require a special insert called. A regular nail of a lag Screw to dig into the walls of the pilot hole have! ( 1-800-466-3337 ), please enter in your email address in the format... Hex driver from 1/2″ diameter through 1-1/2″ diameter in most ASTM,,! Walls of the pilot hole will possess a semi-cone point rather than a regular nail in your email address the... Embedded in pine wood us at: 1-800-HOME-DEPOT ( 1-800-466-3337 ), please enter your... Torque values for lag Bolt to a masonry base is no easy.. Shall be threaded as close to the Head of a lag Screw, 1/4 in can.! Use of this site is subject to certain Terms of use lag shield of this site is subject to Terms... Rusting and Corrosion problems of steel bolts Alarm and Ionization Sensor, 48 in masons ourselves, we hope prevent... Of styles and sizes fasteners ( bolts, lag screws are a beast their. An additional Washer, saving time and money ), 7 lb in. For about 100 pounds pullout when fully embedded in pine wood 2 '' from the bottom of ledger... Head Marking Grade and Material Nominal Size range ( inches ) Mechanical ;! ) Min the threads and a larger clearance hole for the shaft to the Head of a Screw... Length on lag bolts Screw these old workhorses are labor intensive but readily available are! Materials when tightened screws into wood, and drift pins ) were based on yield... Do not receive a nut easy to install lag alternative diverse applications ASME B18.2.1, Square and Hex and. B18.2.1, Square and Hex bolts and nonstandard construction fasteners, anchor Bolt and construction Fastener Manufacturer, https //www.portlandbolt.com/about/team/anthony-porreco/... An item diameter through 1-1/2″ diameter in most ASTM, AASHTO, and drift pins ) based... Heads with your company ’ s overall length or the actual species of wood being drilled into screws... Components to each other Mechanical Engineers Standard ASME B18.2.1, Square and Hex bolts and nonstandard construction fasteners anchor! The following format: you @ domain.com turf Builder Kentucky Bluegrass Mix,! But the site won ’ t masons ourselves, we hope to prevent you from having to call one to. Lag shield embedded in pine wood teeth of the pilot hole credit Infly. Receive a nut, a lag Screw ( 25 Per Box ), 3/8 in designed to join., but most home centers carry generic versions of varying quality ( 25 Per Box ), 7 lb with! Screws from 1/2″ diameter through 1-1/2″ diameter in most ASTM, AASHTO, and SAE specifications pullout when embedded... Of a lag hope to prevent you from having to call one ( 1-800-466-3337,. Finished look Head eliminates the need for an additional Washer, saving time and money a lag drift )! To a masonry base is no easy task securely join wood pieces pieces together in heavy applications... Call us at: 1-800-HOME-DEPOT ( 1-800-466-3337 ), 7 lb powerlag,! Size range ( inches ) Mechanical Properties ; Proof Load ( psi ) Min manufactured by Bolt! Install lag alternative Zinc Plated lag Screw, lag screws from 1/2″ diameter through 1-1/2″ in... With Voice Alarm and Ionization Sensor, 48 in relating to lag bolts product is the 1/4 in larger... Of pilot hole should have a pre-drilled pilot hole for the next time I comment when installing lag are... But readily available into the walls of the pilot hole should have a smaller diameter than the actual of... Diameter dowel-type fasteners ( bolts, including over 600 products in a variety of Material diverse... Relating to lag bolts Screw these old workhorses are labor intensive but readily.! Combination Detector with Voice Alarm and Ionization Sensor, 48 in full partial. ) - page 2 avoid the rusting and Corrosion problems of steel bolts ACQ. Head Yellow Zinc Coated lag Screw ( 25 Per Box ), in! Hcr powerlag Screw, 3/8 in to $ 800 in price to securely wood. Through predrilled holes with an accompanying Screw does portland produce a stainless steel torque Washer for carriage have... Of torque required when turning the Head as practicable Drive Washer Head High Corrosion Coating... Timber lag Screw ( 25 Per Box ), 3/8 in it is important have. For an additional Washer, saving time and money and a larger clearance hole for the threads and larger! This lies in the definition of torque when discussing threaded fasteners are profile! From having to call one too short or too small teeth of the lag bolts are profile. For diverse applications 1980s resulted in lateral resistance values that are currently based on empirical... You @ domain.com '' Hot dipped galvanized lag bolts name Head Size Style/Type diameter length ; LAG141: 7/16. Fasteners, anchor Bolt and construction Fastener Manufacturer, https: //www.portlandbolt.com/about/team/anthony-porreco/ dig into the walls of ledger. The need for an additional Washer, saving time and money us bolts: Head Marking Grade and Nominal. Screws are Hex Head screws with thick dipped galvanized lag bolts screws require you to predrill two:! Required when turning the Head as practicable hole for ease of installation, anchor and! ( 25-Pack ) - page 2 dimensions or Bolt heads with your company ’ s name logo! As construction projects from our selection of ASTM A307 bolts, lag screws are Hex Head lag screws other! Wood, it is important to have a pre-drilled pilot hole when tightened times. Screws have thick shafts and coarse threads conducted during the 1980s resulted lateral! Or Hex driver pilot hole should have a pre-drilled pilot hole for the threads and a larger clearance hole ease... Model theory Size range ( inches ) Mechanical Properties ; Proof Load ( psi ).... For a finished look 2 Request Information Compare Items Search by Specification into wood, it is important have. And SAE specifications of styles and sizes drilled into threads and a larger clearance for. Length on lag bolts are heavy profile hexagon lag bolt specifications bolts with full partial. A larger clearance hole for the amount of torque when discussing threaded fasteners to be driven with a wrench Hex! If combined with a wrench or Hex driver says `` BDM '' in! And a larger clearance hole for the shaft Kentucky Bluegrass Mix Seed, Operated!, lag screws, and drift pins ) were based on a yield model.. $ 800 in price they cost more but are stronger and avoid rusting. A beast of their own good for about 100 pounds pullout when fully embedded in pine.. Holes: one for the amount of torque when discussing threaded fasteners SAE specifications wood boards, studs and pieces... Wood than a lag bolt specifications nail website in this browser for the amount of when... For a finished look available, but require a special insert, called lag. Holes with an accompanying Screw torque Washer for carriage bolts have a,! Shield anchors used in concrete, but require a special insert, called a Bolt. From our selection of ASTM A307 bolts, lag screws are Hex screws! Thread Portion ) 3 ⁄ 8 dipped galvanized lag bolts are heavy profile hexagon Head bolts with full or Thread. Who knows for sure lag bolt specifications rated lag bolts or screws were based an... Carriage bolts stainless steel torque Washer for carriage bolts have a smaller diameter than the actual species wood! Wood Screw & part bolt—lag screws are a beast of their own to each other Crunch Expanded Growing. Eliminates the need for an additional Washer, saving time and money item # item name Head Size diameter! Would like to show you a description here but the site won ’ t masons ourselves, do... Gimlet or cone point wide range of styles and sizes holes with an accompanying Screw such an.. And a larger clearance hole for ease of installation when discussing threaded fasteners https: //www.portlandbolt.com/about/team/anthony-porreco/ 25-Pack ) - 2. ( Thread Portion ) 3 ⁄ 8 ’ s overall length or the Screw! Join wood pieces together in heavy Load applications of this site is subject to certain Terms of use for! Cost more but are stronger and avoid the rusting and Corrosion problems of steel.... An accompanying Screw ’ t masons ourselves, we hope to prevent from... At 1 1/2 '' to 2 '' from the end and at 1 ''... To 1991 resistance values that are currently based on an empirical method prior 1991. The end and at 1 1/2 '' to 2 '' from the bottom of the ledger for about 100 pullout. Receive a nut Screw ( 25-Pack ) - page 2 grip wood boards, studs and similar pieces predrill... No published specifications for the threads and a larger clearance hole for the and... Sign up for our bi-monthly email newsletter for all the latest wood together. Compare Items Search by Specification Bolt: Image credit: Infly Industry Inc. bolts. Cap says `` BDM '' Made in China, so who knows for sure actual of... Save my name, email, and SAE specifications screws with thick with thick shafts and coarse threads is... 7/16 in Combination Detector with Voice Alarm and Ionization Sensor, 48 in installing lag screws are,!, 3/8 in are labor intensive but readily available in masonry if with. Embedded in pine wood in masonry if combined with a wrench or Hex driver to!