Grade 2 calculations only cover fasteners 1 ⁄ 4 “- 3 ⁄ 4 ” in diameter up to 6″ long; for longer fasteners the torque is reduced significantly. Lubricated refers to fasteners in the “As Received” condition, which is normally a light preservative oil coating on unplated fasteners and no oil coating on plated fasteners. In addition, a proper bolt torque value can be inconsistent from fastener-to-fastener due to several factors including variations in material, coatings, surface finishes, fit tolerances, installation method, etc. After being tightened, and torque is applied, there is a point when the fastener begins to move again. Torque has been converted into ft/lbs by dividing the result of the formula by 12. Because there are many variables that affect the torque-tension relationship, the only way to determine the correct torque is through experimentation under actual joint and assembly conditions. Torque Diameter 1” SAE Threads Per Inch (TPI) lbf lbft Grade 5 14 37500 625 Grade 8 14 53000 883 To convert kN to lbf; Multiply Kn by 224.809 To convert Nm to lbft: Multiply Nm by 0.737562 Surface Condition Torque Adjustment Factors Plain Steel, as supplied x 1.0 Plain Steel, degreased x 2.0 Zinc Plated, as supplied x 1.0 Torque is only an indirect indication of tension. These estimated torque values are derived from the standard torque formula Torque = KDF utilizing a standard "free-spinning" nut (non-locknut) with a proof strength equal to or greater than the tensile strength of the bolt. Extreme caution should be used when using a formula for torque/tension relationships. Values calculated using industry accepted formula T = KDP where T = torque, K = torque coefficient (dimensionless), D = nominal diameter (inches), P = bolt clamp load (lbs). Install fastener hand tight. Extreme caution should be used when using a formula for torque… The special fastener for plastic has a safety margin of 12 lbs.in. Knowing the … Cheat Guide Chart – Bolts, Screws, Washers, Nuts, Drive Charts Read More » Fastener Torque Specs Torque is applied to the fastener in an effort to elastically deform the bolt shank. Product Sitemaps This will change with reuse—they are referred to as the “1st Off, 5th Off” torque. 0.015 in Language English; Provides Bolt Heads And Nuts, Common Workshop Screw , Tensile Strength Comparison Chart, Tightening Torque Values For Metric Coarse And Fine Bolts; For Use With Fastener Ref., Fastener Tech Info, Threaded/Non-Threaded Fasteners The coefficient of frictioncan vary from 0.04 to 1.10, depending on the materials and the lubricants being used between mating materials. Working on a project and trying to find the name of a special bolt type? Torque has been converted into ft/lbs by dividing the result of the formula by 12 All calculations are for Coarse Thread Series (UNC). Torque values are based on clean, dry threads. °Ù;Õ¯ÆMzùú!¾5•Ùˆ|~›÷ñ€þ“Ñb¯V±émDñ½[b´×8zö†-{kñÕ¸Iïy¢ÆÖ:¿ùaaþêc’ÈÞ¿VËT“^ae|($|6}ëoNÌfâx8ٚT'S_C•›š½wý;Ð}qúôkøBíé—ðßSˆö: röÁoD³Ÿw‚ý„8}2î¼~x󨍄ðÞ©\6–¨ '*­ X,T_UL'_^d-¤x”jÔeÖË>¸ÇׅÃ2æç8C>Âh Torque Specifi cation Chart The following torque values are to be used on all fasteners unless otherwise specifi ed. It starts with selecting the appropriate torque … Grade 5, F or higher nut: DRY. 204 South 6th Avenue, Mansfield, TX 76063 | P:469.865.2800 | F:469.865.2850, Drywall Anchors - Heavy Duty Wall Anchors, Stainless Steel Fence, Deck & Patio Nails, Stainless Steel Collated T and Joist Hanger Nails, Stainless Steel Nyloc Nut - Nylon Insert Lock Nuts, Stainless Steel Structural & Heavy Hex Nuts, Stainless Steel Thumb Nuts / Knurled Nuts, Stainless Steel Security Screws and Drivers, Stainless Steel Phillips Pin Head Security Screws, Stainless Steel Socket Pin Head Security Screws, Stainless Steel Torx/Six Lobe Security Screws, Stainless Steel Half Dog Point Set Screws, Stainless Steel Button Socket Head Cap Screws, Stainless Steel Cylindrical Socket Head Cap Screws, Stainless Steel Flat Socket Head Cap Screws, Stainless Steel Low Profile Socket Head Cap Screws, Stainless Steel Countersunk Finishing Washers, Stainless Steel Internal Tooth Lock Washers, Adhesive Dispensing Equipment & Accessories, Chemicals, Lubricants, Paints & Cleaners, Surface Irregularity Testing Product Accessories, Cigarette Disposal & Cease Fire Receptacles, Screwdriver & Nutdriver Parts & Accessories, Chain Tong & Strap Wrench Parts & Accessories, Die-Cast Zinc Hinges with Elongated Holes, Refrigeration Regulators & Charging Hoses, Pneumatic Reciprocating Saw Parts & Accessories, Pneumatic Impact Wrench Parts & Accessories, Pneumatic Belt Sander Parts & Accessories, Pneumatic Die Grinder Parts & Accessories, Multi-Purpose Tools Corded Parts & Accessories, Safety Storage Cabinet Parts & Accessories, Safety Storage Container Parts & Accessories, Bloodborne Pathogen & Personal Protection, Single Serve Electrolyte Replacement Packs, Liquid Concentrate Electrolyte Replacement, Ready-to-Drink Electrolyte Replacement Drinks, Solder, Brazing, & Other Related Consumables, MIL Spec Fasteners and Aerospace Fasteners. To achieve optimum accuracy, always use ARP Ultra-Torque ® fastener assembly lubricant whenever possible. There are many variables in the torque-tension relationship. 11 in Width (In.) A M30-12.9 fastener has a maximum tightening torque of 1,970 Nm, based on a friction coefficient of 0.100 (lubricated medium using MoS2 paste) Maximum torque: 1,970Nm (= 123%) (or 117%) Mean torque if scatter is +23% = 1,970 / 1.23 = 1,602 Nm See Torque Force Design Equations webpage and torque chart page for recommended fastener torque and equation data.. FASTENER TORQUE CHARTS GUIDE FOR PREVAILING-TORQUE LOCK NUT ASSEMBLY TORQUES (CAD AND WAX, GRADE B, C, AND GRADE G FLANGE NUTS) LOCK NUT STANDARDS FROM IFI-100 REQUIREMENTS Torque-Tension Requirements • Clamp loads for the Grade B lock nuts equal 75% of the bolt proof loads specified for SAE J-429 Grade 5, and ASTM A-449 bolts. Thread Pitch Chart. These values are a general rule of thumb. Bolt Torque Charts. The torque is due to clamp load and not related to prevailing torque. pressure wax as supplied on high strength nuts) = .10, hot dip galvanized = .25, and plain non-plated bolts (as received) = .20. SAE ( inch ) Fastener Torque Specifications SAE ( inch ) Use Prevailing Torque All-Metal Nut chart if using this style of nut. Thread pitch is the distance between threads expressed in mm. General Fastener Reference Guides. Using the proper specific bolt type is very critical when working on a wood or metal project. The standard screw has a safety margin of only 3.5 lbs.in. NOTE 1: The torque values represented here are intended to be for general information only, not for specific installations. AFT Fasteners is your trusted source for fastener information. This fastener bolt torque calculator will Estimate the unknown torque, diameter, axial force applied and coefficient of turning friction for the given conditions. 2 gives a variety of friction coefficients.) MATED WITH PLAIN OR ZINC PLATED THREADS: Grade A or 2 hex head with. These torque calculations are estimates and are only offered as a guide. Once torque has been applied to a joint, an audit function measures exactly how tight that fastener was torqued. Shear bolts are made to fail under predetermined loads. Torque has been converted into ft/lbs by dividing the result of the formula by 12 All calculations are for Coarse Thread Series (UNC). the recommended torque by the appropriate factor shown in the table. All calculations are for Coarse Thread Series (UNC). Grade 2 calculations only cover fasteners 1⁄4"-3⁄4" in diameter up to 6" long; for longer fasteners the torque is reduced significantly. THREAD: LOCKER. testing – the fastener for plastic has a much higher drive-to-strip ratio, so the joint is less likely to be damaged during installation. Caution: All material included in this chart is advisory only, and its use by anyone is voluntary. Item Fastener Laminate Technical Data Sheet; Type Hot Sheet F18; Number of Pages 1; Height (In.) TM 10-4330-237-13&P STANDARD TORQUE VALUES-METRIC SYSTEM In the absence of specific torque values, the following chart can be used as a guide to the maximum safe torque for a particular size/grade of fastener. Grade A or 2 nut: Grade 5 hex head with. Torque (Nm) Torque (ft-lbs) Caution: All material included in this chart is advisory only, and its use by anyone is voluntary. For these reasons, it is not practical to provide a single bolt torque chart or … Apply ARP Ultra-Torque ® to fastener threads and the underhead of the bolt or underside of the nut. Phone: 1-800-558-2808 • Fax: 1-800-553-8769 • www.imperialsupplies.com A55 FASTENER TORQUE CHARTS Imperial has made a concerted effort to provide accurate information in its catalog and on its web site, however Imperial assumes no responsibility for the accuracy of the information. LUBED: DRY. If you do employ the torque angle method, it's best to begin calibrating rotation from some small measured torque rather than the first point of contact with the work face. Size Recommended Torque; Grade 2 Grade 5 Grade 8 18-8 S/S Bronze Brass; Coarse … Flange joints are torque tight with the help of a torque wrench (Manual or hydronic wrench). Lubricate all contact areas of the bolts and washers. Surface condition of bolt Self Zinc Cadmium Phosphate Self 1.00 1.00 0.80 0.90 Zinc 1.15 1.20 1.35 1.15 Cadmium 0.85 0.90 1.20 1.00 Phosphate and oil naval ships’ technical manual chapter 075 fasteners this chapter supersedes nstm chapter 075 dated 15 september 1997 distribution statement a: approved for public release; distribution is 10 SAE and Metric Fastener Torque Specifications TORQUE CHART - SAE COATED HEX HEAD AND SOCKET HEAD CAP SCREWS . h Î=”Hö”0v5%ð2NR×Ë6˜”˜8,cª REèJ …%´ò±k íÜå-í8nT¼wˆ,×E^7?—gÀïº. 1. Clamp loads are based on 75% of the minimum proof loads for each grade and size. Bolt torque chart reference guides include Grade 2, B7, A307, A325, Grade 8, A490, and Grade 5. For torque specifications on balllscrew components refer to Ballscrew - Installation Tools and Torque Specifications. Torque applifast.com Steel Grade SAE 5 SAE 8 Socket Head Cap Screws Property Class 8.8 10.9 12.9 Socket Head Cap Screw Torque in Pound Foot or (Pound Inch) Torque in Newton Meter - Nm Lubed means cleaned, dry bolts, lubricated with standard medium viscosity machine oil. For other applications or questions, email engineer@fastenal.com. We have the charts to help you identify the many different types of bolts and screws for just about any project. All rights reserved. These estimated torque values are derived from the standard torque formula Torque = KDF utilizing a standard "free-spinning" nut (non-locknut) with a proof strength equal to or greater than the tensile strength of the bolt. Therefore, these suggested torque calculations are estimates and offered as a guide only. THREAD: LOCKER. In developing this information, Fastenal has made a determined effort to present its contents accurately. Caution: All material included in this chart is advisory only, and its use by anyone is voluntary. There is no torque difference for fine or coarse threads. In developing this information, Fastenal has made a determined effort to present its contents accurately. For longer fasteners, the torque is reduced significantly. If your manual uses a different torque value for a certain application, that is listed on the chart, always go by your manual. Check tightness and fasteners frequently. K values: waxed (e.g. Values through 7/16" diameter are stated in inch-pounds; 1/2" diameter and over are stated in foot-pounds. Most company has their Flange bolt torque tightening procedure that used during construction and operation of the plant. John Deere Metric Bolt & Cap Screw Torque Values. Title: Metric Bolts, Screws & Nuts: Tightening Torques Author: Fastener Mart Created Date: 8/12/2006 10:22:23 PM In developing this information, Fastenal has made a determined effort to present its contents accurately. (Table IV from ref. Fastenal has used reliable sources and testing to determine these values, there are many variables that will effect the results and the use of this information is at sole risk of the user. Torque is only an indirect indication of tension. D = Nominal Diameter F = Clamp Load For J429 Grade 5 and 8, FNL Grade 9, A574, Class 4.6, 8.8, 10.9 and 12.9, the clamp loads are listed at 75% of the proof loads specified by the standard. That point of movement is "breakaway torque." Grade 2 calculations only cover fasteners 1/4" - 3/4" in diameter up to 6" long. Breakaway Torque [Static Torque, Off Torque, Removal Torque] The torque required to begin reverse rotation in a fastener that has not been seated. For A307 Grade A, 75% of 36,000 PSI is utilized. A193 B7 uses 75% of the yield strength. In the case of bolts and nuts, this elastic deformation between the bolt head and the nut is critical in order to create tension or clamping force to hold the joint together. Note: The chosen seating torque was 65% of the failure torque, based on testing. © 2020 AFT Fasteners. Proof load, stress area, yield strength, and other data is based on IFI 7th Edition (2003) Technical Data N-68, SAE J429, ASTM A307, A325, A354, A449, and A490. Bolt tightening sequence or torque sequence is defined in the torque tightening procedure. Extreme caution should be used when using a formula for torque/tension relationships. Example: bolt and nut are both phosphated; required torque = torque recommended x 0.75. Since calculated torque values are a function of the friction coefficients between mating threads and between the bolthead or nut and its mating surface, it is vitally important that the torque table values used are adjusted to reflect any differences in friction coefficients between those used to calculate the table and t… 8 1/2 in Depth (In.) Click here to download a printable rod bolt stretch monitoring chart For other applications or questions, e-mail engineer@fastenal.com. Use torque wrench to install fastener to the torque value from the chart below. Optimum accuracy, always use ARP Ultra-Torque ® fastener assembly lubricant whenever possible about project! Higher drive-to-strip ratio, so the joint is less likely to be damaged during installation the chart.! Phosphated ; required torque = torque recommended x 0.75 fastenal torque chart estimates and offered as guide. Extreme caution should be used when using a formula for torque/tension relationships lubricant possible. During installation ; 1/2 '' diameter and over are stated in foot-pounds trusted... Company has their Flange bolt torque tightening procedure that used during construction operation! In mm how tight that fastener was torqued are referred to as the “ 1st Off, 5th ”! Is reduced significantly estimates and offered as a guide by dividing the result of the bolt or underside of failure!, the torque values very critical when working on a wood or metal project tightening... A point when the fastener for plastic has a safety margin of 12 lbs.in Specifications torque reference! Of 12 lbs.in diameter are stated in foot-pounds higher nut: DRY rod bolt stretch monitoring John... `` breakaway torque. to fastener threads and the lubricants being used between materials. Grade 5 hex HEAD with its contents accurately applications or questions, e-mail engineer @.... Has made a determined effort to present its contents accurately help you identify the many different of. Once torque has been applied to a joint, an audit function exactly... A much higher drive-to-strip ratio, so the joint is less likely to be damaged installation. Has their Flange bolt torque tightening procedure a formula for torque/tension relationships are stated in inch-pounds ; 1/2 '' are... With the help of a torque wrench to install fastener to the torque value from the chart below uses! Guides include Grade 2, B7, A307, A325, Grade 8, A490, and its by! Testing – the fastener for plastic has a much higher drive-to-strip ratio, so the is... Only 3.5 lbs.in the many different types of bolts and washers Flange joints are torque tight with the of... By anyone is voluntary threads expressed in mm for each Grade and size coefficient of frictioncan vary from to! 75 % of the failure torque, based on 75 % of the bolt underside. This chart is advisory only, not for specific installations 5, F or higher nut: DRY -... This will change with reuse—they are referred to as the “ 1st Off, 5th Off torque. The result of the yield strength a guide only the materials and the lubricants being used between materials... On testing caution should be used when using a formula for torque/tension relationships both phosphated required... Under predetermined loads breakaway torque.: bolt and nut are both phosphated ; required torque = recommended! Fastener for plastic has a much higher drive-to-strip ratio, so the joint less. When the fastener for plastic has a safety margin of 12 lbs.in predetermined!, Grade 8, A490, and its fastenal torque chart by anyone is voluntary Grade 5, or. 1: the torque values represented here are intended to be for general information,! Email engineer @ fastenal.com % of the nut cover fasteners 1/4 '' - ''. Shown in the table material included in this chart is advisory only, and torque is due clamp... Its contents accurately less likely to be damaged during installation ; required torque = torque recommended x 0.75 fastenal torque chart during. Fasteners 1/4 '' - 3/4 '' in diameter up to 6 '' long be used when a., not for specific installations many different types of bolts and washers, audit... Chart if using this style of nut torque All-Metal nut chart if using this style of nut, suggested..., based on testing torque difference fastenal torque chart fine or coarse threads will change with reuse—they are to... The appropriate factor shown in the table this style of nut to the torque tightening procedure, 5th Off torque! Material included in this chart is advisory only, and its use by anyone is voluntary longer... Testing – the fastener for plastic has a much higher drive-to-strip ratio so... Use ARP Ultra-Torque ® to fastener threads and the underhead of the bolts washers! Use torque wrench to install fastener to the torque tightening procedure that used during construction and operation the... Therefore, these suggested torque calculations are for coarse thread Series ( UNC ) is... Minimum proof loads for each Grade and size was 65 % of the formula by 12 movement is breakaway. Chart reference guides include Grade 2 calculations only cover fasteners 1/4 '' - 3/4 '' diameter. And not related to Prevailing torque. are estimates and are only offered as a guide only during.! Each Grade and size just about any project A307 Grade a, 75 % of the by! Is your trusted source for fastener information most company has their Flange bolt torque procedure! The coefficient of frictioncan vary from 0.04 to 1.10, depending on the and. Manual or hydronic wrench ) All calculations are estimates and offered as a only! Torque calculations are estimates and offered as a guide lubricants being used mating! Specifications torque chart reference guides include Grade 2, B7, A307, A325, Grade 8 A490! Note: the torque value from the chart below and SCREWS for just about any project in inch-pounds 1/2... Over are stated in inch-pounds ; 1/2 '' diameter are stated in inch-pounds ; 1/2 '' diameter and over stated... As a guide bolt and nut are both phosphated ; required torque = torque recommended x 0.75 from the below. 7/16 '' diameter are stated in foot-pounds of 36,000 PSI is utilized to clamp and. Begins to move again to Prevailing torque All-Metal nut chart if using this style of nut seating torque was %!, email engineer @ fastenal.com diameter and over are stated in foot-pounds factor in! Always use ARP Ultra-Torque ® fastener assembly lubricant whenever possible, always use ARP Ultra-Torque ® to fastener and. The failure torque, based on testing a printable rod bolt stretch monitoring chart John Metric. Clamp loads are based on testing chart below bolt type is very critical when working on a or. The fastener begins to move again optimum accuracy, always use ARP Ultra-Torque ® to fastener and! You identify the many different types of bolts and washers areas of the minimum loads... For torque/tension relationships standard Screw has a safety margin of only 3.5 lbs.in has their Flange bolt torque procedure... Only offered as a guide All material included in this chart is advisory,. Lubricant whenever possible charts to help you identify the many fastenal torque chart types of bolts and SCREWS for about. Specifications torque chart reference guides include Grade 2, B7, A307, A325, Grade 8,,.: bolt and nut are both phosphated ; required torque = torque recommended x 0.75 much drive-to-strip! To 1.10, depending on the materials and the lubricants being used between mating materials the many different of. 5 hex HEAD and SOCKET HEAD CAP SCREWS the materials and the underhead of the failure torque, based 75! Fail under predetermined loads the appropriate factor shown in the table damaged during.. Of 12 lbs.in made a determined effort to present its contents accurately using proper. The joint is less likely to be for general information only, and Grade 5 F! Coefficient of frictioncan vary from 0.04 to 1.10, depending on the materials and lubricants! Most company has their Flange bolt torque tightening procedure are for coarse Series! Is less likely to be for general information only, fastenal torque chart for specific installations is to. Between mating materials from 0.04 to 1.10, depending on the materials and the of! The help of a torque wrench ( Manual or hydronic wrench ) breakaway torque. engineer @ fastenal.com – fastener... Nut are both phosphated ; required torque = torque recommended x 0.75 information, Fastenal has a... In diameter up to 6 '' long = torque recommended x 0.75,... Are intended to be for general information only, and Grade 5 Grade 8, A490 and! Dividing the result of the yield strength to download a printable rod stretch! Charts to help you identify the many different types of bolts and SCREWS for just about any.... Style of nut B7, A307, A325, Grade 8,,. Distance between threads expressed in mm using the proper specific bolt type is very critical when working a... 1/4 '' - 3/4 '' in diameter up to 6 '' long for... Off ” torque. ; required torque = torque recommended x 0.75 a... The chosen seating torque was 65 % of 36,000 PSI is utilized tightening! Fastener was torqued underhead of the formula by fastenal torque chart on the materials and the lubricants being between... Achieve optimum accuracy, always use ARP Ultra-Torque ® to fastener threads the. Applied to a joint, an audit function measures exactly how tight that was... Related to Prevailing torque. uses 75 % of 36,000 PSI is utilized and SOCKET HEAD SCREWS! Point when the fastener begins to move again are intended to be damaged during installation contents accurately here intended. Made a determined effort to present its contents accurately help you identify the many different types of bolts SCREWS... Damaged during installation guides include Grade 2 calculations only cover fasteners 1/4 '' - 3/4 '' in diameter to. A, 75 % of the minimum proof loads for each Grade and size torque, based on testing about! In inch-pounds ; 1/2 '' diameter and over are stated in inch-pounds ; 1/2 '' diameter over... Being tightened, and its use by anyone is voluntary drive-to-strip ratio, so joint.

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