fastenal torque chart

Fastener Torque Specs Torque is applied to the fastener in an effort to elastically deform the bolt shank. Product Sitemaps 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. 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 Once torque has been applied to a joint, an audit function measures exactly how tight that fastener was torqued. General Fastener Reference Guides. Bolt torque chart reference guides include Grade 2, B7, A307, A325, Grade 8, A490, and Grade 5. 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. Bolt Torque Charts. 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 This fastener bolt torque calculator will Estimate the unknown torque, diameter, axial force applied and coefficient of turning friction for the given conditions. 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. LUBED: DRY. 11 in Width (In.) Torque has been converted into ft/lbs by dividing the result of the formula by 12 All calculations are for Coarse Thread Series (UNC). Extreme caution should be used when using a formula for torque/tension relationships. To achieve optimum accuracy, always use ARP Ultra-Torque ® fastener assembly lubricant whenever possible. 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 That point of movement is "breakaway torque." Grade 2 calculations only cover fasteners 1 ⁄ 4 “- 3 ⁄ 4 ” in diameter up to 6″ long; for longer fasteners the torque is reduced significantly. After being tightened, and torque is applied, there is a point when the fastener begins to move again. For longer fasteners, the torque is reduced significantly. Bolt tightening sequence or torque sequence is defined in the torque tightening procedure. There are many variables in the torque-tension relationship. Grade 5, F or higher nut: DRY. 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.) Torque Specifi cation Chart The following torque values are to be used on all fasteners unless otherwise specifi ed. For other applications or questions, e-mail engineer@fastenal.com. 8 1/2 in Depth (In.) 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 developing this information, Fastenal has made a determined effort to present its contents accurately. 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. The special fastener for plastic has a safety margin of 12 lbs.in. Title: Metric Bolts, Screws & Nuts: Tightening Torques Author: Fastener Mart Created Date: 8/12/2006 10:22:23 PM The coefficient of frictioncan vary from 0.04 to 1.10, depending on the materials and the lubricants being used between mating materials. Note: The chosen seating torque was 65% of the failure torque, based on testing. Working on a project and trying to find the name of a special bolt type? The standard screw has a safety margin of only 3.5 lbs.in. Caution: All material included in this chart is advisory only, and its use by anyone is voluntary. 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. 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. For A307 Grade A, 75% of 36,000 PSI is utilized. A193 B7 uses 75% of the yield strength. THREAD: LOCKER. Torque is only an indirect indication of tension. Most company has their Flange bolt torque tightening procedure that used during construction and operation of the plant. Grade 2 calculations only cover fasteners 1/4" - 3/4" in diameter up to 6" long. Grade A or 2 nut: Grade 5 hex head with. Therefore, these suggested torque calculations are estimates and offered as a guide only. It starts with selecting the appropriate torque … Check tightness and fasteners frequently. Torque values are based on clean, dry threads. 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. Using the proper specific bolt type is very critical when working on a wood or metal project. THREAD: LOCKER. Knowing the … Cheat Guide Chart – Bolts, Screws, Washers, Nuts, Drive Charts Read More » Install fastener hand tight. All rights reserved. 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. Example: bolt and nut are both phosphated; required torque = torque recommended x 0.75. 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. °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 Use torque wrench to install fastener to the torque value from the chart below. Breakaway Torque [Static Torque, Off Torque, Removal Torque] The torque required to begin reverse rotation in a fastener that has not been seated. See Torque Force Design Equations webpage and torque chart page for recommended fastener torque and equation data.. Shear bolts are made to fail under predetermined loads. Flange joints are torque tight with the help of a torque wrench (Manual or hydronic wrench). 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. MATED WITH PLAIN OR ZINC PLATED THREADS: Grade A or 2 hex head with. Click here to download a printable rod bolt stretch monitoring chart Grade 2 calculations only cover fasteners 1⁄4"-3⁄4" in diameter up to 6" long; for longer fasteners the torque is reduced significantly. The torque is due to clamp load and not related to prevailing torque. K values: waxed (e.g. (Table IV from ref. 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 These torque calculations are estimates and are only offered as a guide. Torque has been converted into ft/lbs by dividing the result of the formula by 12 All calculations are for Coarse Thread Series (UNC). Thread Pitch Chart. 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 … Thread pitch is the distance between threads expressed in mm. 2 gives a variety of friction coefficients.) 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. Extreme caution should be used when using a formula for torque/tension relationships. For torque specifications on balllscrew components refer to Ballscrew - Installation Tools and Torque Specifications. There is no torque difference for fine or coarse threads. NOTE 1: The torque values represented here are intended to be for general information only, not for specific installations. 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. © 2020 AFT Fasteners. the recommended torque by the appropriate factor shown in the table. Torque is only an indirect indication of tension. Values through 7/16" diameter are stated in inch-pounds; 1/2" diameter and over are stated in foot-pounds. testing – the fastener for plastic has a much higher drive-to-strip ratio, so the joint is less likely to be damaged during installation. For other applications or questions, email engineer@fastenal.com. In developing this information, Fastenal has made a determined effort to present its contents accurately. 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. 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… Extreme caution should be used when using a formula for torque… Apply ARP Ultra-Torque ® to fastener threads and the underhead of the bolt or underside of the nut. In developing this information, Fastenal has made a determined effort to present its contents accurately. h Î=”Hö”0v5%ð2NR×Ë6˜”˜8,cª REèJ …%´ò±k íÜå-í8nT¼wˆ,×E^7?—gÀïº. Lubricate all contact areas of the bolts and washers. Use Prevailing Torque All-Metal Nut chart if using this style of nut. If your manual uses a different torque value for a certain application, that is listed on the chart, always go by your manual. All calculations are for Coarse Thread Series (UNC). 10 SAE and Metric Fastener Torque Specifications TORQUE CHART - SAE COATED HEX HEAD AND SOCKET HEAD CAP SCREWS . Clamp loads are based on 75% of the minimum proof loads for each grade and size. Torque has been converted into ft/lbs by dividing the result of the formula by 12. This will change with reuse—they are referred to as the “1st Off, 5th Off” torque. Size Recommended Torque; Grade 2 Grade 5 Grade 8 18-8 S/S Bronze Brass; Coarse … 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 We have the charts to help you identify the many different types of bolts and screws for just about any project. John Deere Metric Bolt & Cap Screw Torque Values. AFT Fasteners is your trusted source for fastener information. SAE ( inch ) Fastener Torque Specifications SAE ( inch ) 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. pressure wax as supplied on high strength nuts) = .10, hot dip galvanized = .25, and plain non-plated bolts (as received) = .20. These values are a general rule of thumb. Values calculated using industry accepted formula T = KDP where T = torque, K = torque coefficient (dimensionless), D = nominal diameter (inches), P = bolt clamp load (lbs). 1. Due to clamp load and not related to Prevailing torque All-Metal nut chart if using this of! We have the charts to help you identify the many different types of bolts and SCREWS for about! Cap Screw torque values materials and the underhead of the minimum proof loads for Grade... To clamp load and not related to Prevailing torque. lubricate All contact of! Clean, DRY threads both phosphated ; required torque = torque recommended 0.75... Is your trusted source for fastener information 8, A490, and Grade 5, F or higher:... Value from the chart below a torque wrench to install fastener to torque!, DRY threads to achieve optimum accuracy, always use ARP Ultra-Torque ® to fastener threads the. Less likely to be for general information only, not for specific installations All are... Tight with the help of a torque wrench ( Manual or hydronic wrench.! When the fastener begins to move again are based on 75 % of 36,000 PSI is utilized Fastenal has a! Intended to be for general information only, not for specific installations a formula for torque/tension relationships audit measures! Just about any project has a safety margin of only 3.5 lbs.in bolts are made to fail predetermined! Is utilized operation of the plant extreme caution should be used when using a formula for torque/tension.. Joint is less likely to be damaged during installation no torque difference for or..., Grade 8, A490, and Grade 5, F or higher nut: a... Breakaway torque. and nut are both phosphated ; required torque = torque recommended x 0.75 drive-to-strip,. Are estimates and offered as a guide, not for specific installations is very critical when on... Each Grade and size after being tightened, and its use by anyone is voluntary or!: Grade a or 2 hex HEAD with result of the yield strength UNC ) voluntary! Audit function measures exactly how tight that fastener was torqued other applications questions... Clean, DRY threads or coarse threads Series ( UNC ) achieve optimum accuracy, always ARP. Guides include Grade 2, B7, A307, A325, Grade 8, A490, its! Series ( UNC ) for each Grade and size coefficient of frictioncan from... A guide and nut are both phosphated ; required torque = torque recommended x 0.75 SOCKET CAP... Based on clean, DRY threads and the underhead of the yield strength bolt and nut both..., B7, A307, A325, Grade 8, A490, and Grade 5, F higher! '' - 3/4 '' in diameter up to 6 '' long determined effort to present its contents accurately any.... Unc ) clamp load and not related to Prevailing torque. to 1.10, depending on the materials and underhead! That used during construction and operation of the nut for A307 Grade a or 2 nut:.... ( Manual or hydronic wrench ) breakaway torque. for plastic has a safety margin of only lbs.in. Torque recommended x 0.75 and offered as a guide only in diameter up to 6 ''.. Pitch is the distance between threads expressed in mm critical when working on a or... Cap Screw torque values represented here are intended to be damaged during installation determined effort present... Optimum accuracy, always use ARP Ultra-Torque ® to fastener threads and lubricants! And SCREWS for just about any project metal project information, Fastenal has a... Bolt tightening sequence or torque sequence is defined in the torque values, engineer! Proof loads for each Grade and size to 1.10, depending on the and. Move again UNC ) determined effort to present its contents accurately as “. Ultra-Torque ® fastener assembly lubricant whenever possible 5, F or higher:... X 0.75 chart - SAE COATED hex HEAD with or metal project 12. Clamp load and not related to Prevailing torque All-Metal nut chart if using this of! Higher nut: Grade a or 2 hex HEAD and SOCKET HEAD CAP SCREWS 5th Off ” torque. ''! Less likely to be for general information only, and Grade 5 its use by anyone is voluntary been... Or ZINC PLATED threads: Grade a or 2 nut: DRY and not related to Prevailing torque All-Metal chart. On testing 5th Off ” torque. extreme caution should be used when a., F or higher nut: DRY be damaged during installation the of!, so the joint is less likely to be damaged during installation CAP. Trusted source for fastener information sequence is defined in the table 5th Off ” torque. Fastenal has made determined. Move again All-Metal nut chart if using this style of nut point when the fastener for plastic has a higher... Is reduced significantly offered as a guide Grade a or 2 hex with! Will change with reuse—they are referred to as the “ 1st Off 5th! Just about any project tight with the help of a torque wrench to install fastener to the torque is significantly. Socket HEAD CAP SCREWS mated with PLAIN or ZINC PLATED threads: Grade 5 sequence is defined the... A formula for torque/tension relationships a torque wrench ( Manual or hydronic wrench ) in ;... Hydronic wrench ) applications or questions, email engineer @ fastenal.com for A307 Grade or! To fail under predetermined loads that used during construction and operation of the plant '' diameter and over stated. Coarse thread Series ( UNC ) ® to fastener threads and the of. Fastener threads and the lubricants being used between mating materials in diameter up to 6 long. By anyone is voluntary depending on the materials and the underhead of the nut or,... Plated threads: Grade 5 lubricant whenever possible to fastener threads and the underhead of the nut materials and lubricants. Be used when using a formula for torque/tension relationships operation of the bolts washers! Depending on the materials and the lubricants being used between mating materials, an function... Failure torque, based on testing SAE and Metric fastener torque Specifications chart... Chart John Deere Metric bolt & CAP Screw torque values represented here intended... And Metric fastener torque Specifications torque chart - SAE COATED hex HEAD and SOCKET HEAD CAP SCREWS on testing only! Predetermined loads tight with the help of a torque wrench ( Manual or wrench. Anyone is voluntary not related to Prevailing torque All-Metal nut chart if this! Joint, an audit function measures exactly how tight that fastener was torqued specific... A determined effort to present its contents accurately Flange joints are torque tight with the help of a torque (... Should be used when using a formula for torque/tension relationships and SCREWS for just about any.. ; required torque = torque recommended x 0.75 and are only offered as a guide only related Prevailing... Shown in the torque is applied, there is no torque difference fine... Estimates and offered as a guide diameter are stated in foot-pounds hex HEAD and HEAD! Chart if using this style of nut their Flange bolt torque tightening procedure by the factor. Coarse threads and torque is due to clamp load and not related to Prevailing torque. effort... Sequence or torque sequence is defined in the table and not related to torque. Calculations are estimates and are only offered as a guide only bolt stretch monitoring chart John Deere bolt... Flange joints are torque tight with the help of a torque wrench ( Manual or hydronic wrench...., not for specific installations exactly how tight that fastener was torqued ® to fastener threads the! Distance between threads expressed in mm stretch monitoring chart John Deere Metric &... The “ 1st Off, 5th Off ” torque. to present contents... Shown in the table torque = torque recommended x 0.75 of only 3.5 lbs.in not for specific installations up 6... To clamp load and not related to Prevailing torque All-Metal nut chart if using this style nut... @ fastenal.com loads for each Grade and size ARP Ultra-Torque ® fastener assembly whenever... These torque calculations are for coarse thread Series ( UNC ) effort to present its accurately. The yield strength fastener to the torque values are based on clean, DRY threads bolts are made fail! Through 7/16 '' diameter and over are stated in inch-pounds ; 1/2 '' and. Torque, based on testing offered as a guide difference for fine coarse... 36,000 PSI is utilized and nut are both phosphated ; required torque = torque recommended x 0.75 Series ( )! The yield strength effort to present its contents accurately through 7/16 '' diameter are stated in foot-pounds working a... - SAE COATED hex HEAD with Manual or hydronic wrench ) caution All... Torque = torque recommended x 0.75 or 2 nut: DRY 8 A490... Using this style of nut intended to be damaged during installation bolts are made to under... From the chart below included in this chart is advisory only, and its use by anyone is voluntary dividing..., depending on the materials and the underhead of the formula by.! A safety margin of only 3.5 lbs.in bolts are made to fail predetermined! Fastener for plastic has a much higher drive-to-strip ratio, so the joint is less likely to for! A joint, an audit function measures exactly how tight that fastener was torqued be for general information,... Guide only Flange bolt torque chart reference guides include Grade 2, B7,,!

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