Standard bolt torque chart pdf. It is also applicable to the combination of other exter...

Standard bolt torque chart pdf. It is also applicable to the combination of other externally and internally threaded fasteners with a triangular This is to be used as a guide only, thereare a variety of complic- ations that can occur that can cause this value to change. The chart specifies that the given torque values should be used on This technical information is supplied as a courtesy. - The document provides a table of standard tightening torques for various bolt sizes and types including hexagon headed bolts, stud bolts, flange bolts, hexagon nuts, and hexagon flange nuts. It lists bolt diameters from M3 to M30 and the maximum recommended torque values in both foot-pounds and Newton-meters for bolts with relative strength markings of 4. A formula is presented for calculating an initial target torque based on these factors. txt) or view presentation slides online. 9, 12. All-Pro Fasteners, Inc. In developing this info The torque values can only be achieved if nut (or tapped hole) has a proof load greater than or equal to the bolt's minimum ultimate tensile strength. 809 To convert Nm to lbft - multiply Nm by 0. pdf) or read online for free. For metric bolts, it lists bolt sizes from M5 to M24 with recommended torque in Nm for grades 8. This document provides torque and tension specifications for various bolt sizes and materials, including: - Coarse and fine thread bolt sizes from 1/4" to 1-1/2" in diameter made of steel grades 307A, 5, 8, and 9. Clamp load calculated as 75% of the proof load when specified by the standard. 8 (metric) and ASTM A193 grade B7 (imperial) or similar. This document provides bolt torque charts with suggested starting torque values for bolts of various sizes, grades, and surface finishes. 3、 Advice about torque: in accordance with 70-80% of table datas,when locking bolts. 1 ( ) Sizes not covered in standard. The torque moment is calculated as a factor K multiplied by the bolt diameter and pretension. Too much or too little can return disastrous results. Around 640 torque tables were developed for UNC, UNF, and M fasteners. Learn about screw types, thread sizes, and lengths to ensure accurate hardware selection. Compare the minimum tensile strength and torque values for bolts, screws, nuts and washers. Bolt torque chart reference guides include Grade 2, B7, A307, A325, Grade 8, A490, and Grade 5. Bolt Torquing Chart www. - Metric Grade B7 Studs Torque Chart At 100% Of Yield Strength Grade B7 Studs Torque Chart At 70% of Yield Strength How Do I Calculate Torque For ASTM A193 B7 Bolts? Metric Bolt Torque Specifications Was this article helpful? TORQUE TABLE IOS 898-1 Emirates Modern Industrial Area Umm Al Quwain, UAE sales@mfindllc. 9 for both dry and oiled threads. Plain Finish Zinc Plated Phosphate & Oil Lubricated Table 21 Table 22 Table 23 Table 24 or your application is critical. com Address: Mumbai (400004), India TABLE OF CONTENTS Bolt torque depends on: Bolt size, type and grade Lubrication (a low friction factor must be considered with MoS2-based grease) The given bolt torques are based on the 90% of the bolt yield strength The torque figures for a finely-threaded fastener as compared to a coarsely-threaded fastener of the same diameter may be slightly higher but hardly worth mentioning. The torque values can only be achieved if nut (or tapped hole) has a proof load greater than or equal to the bolt's minimum ultimate tensile strength. This document provides a chart of standard torque values for metric fasteners. Monster Bolts. Knowing the right torque for your application is critical. This document provides specifications for bolt torque according to AISC ASD Part 5. com | phone: 1-800-877-8351 Oct 13, 2024 · Get the ultimate guide to bolt torque specifications. CAUTION There are many varying factors which affect torque. The document provides a torque specification chart with torque values in inch-pounds and Newton-meters for various bolt sizes, grades, thread types, and lubrication conditions. Unless otherwise specified use torque values listed above. lb ** Fine thread figures are for 1 - 14 Grade 2, 5, and 8 values are for plated bolts. com Reference values for preload and tightening torques with tables for metric coarse threads, metric fine threads, plastic screws and more. 6, 4. Earnest has prepared this guide to assist you in determining the right torque. 12/21/01 RCR15 Series Rotary Cutters 312-556M 23 US Recommended Bolt Torque Print this page Metric Bolt Torque Chart Large - Free download as PDF File (. Guidelines are given for properly Nov 20, 2024 · Ditch the guesswork! Grab our standard bolt torque chart PDF for Australia. com Call Us: +91 7666996996 Website: www. ) Proof Yield Tensile Elong % Load Strength Strength Min Min (ksi) Min (ksi) Min (ksi) TORQUES LISTED ARE SUGGESTED VALUES FOR PARTS THAT CARRY RESIDUAL OILS FROM Jan 8, 1993 · Eurocode 3 Table of design properties for metric hexagonal bolts M5 to M39 (stress area, shear strength, tensile strength, bearing strength) Description: Design aid - Table of design properties for individual metric hexagonal bolts including stress area, yield strength, ultimate strength, shear resistance, tensile resistance, interaction between shear and tension, bearing resistance, punching Bolt Grades, Torque Specs www. Download now! The document provides a comparison of SAE and Metric bolt grades, listing their respective grades and torque specifications in lbs/ft. com | www. IS 1367-20 (1996): Industrial Fasteners - Threaded Steel Fasteners - Technical Supply Conditions - Mechanical Properties, Part 20: Torsional Test and Minimum Torques for Bolts and Screws with Nominal Diameters 1 mm To 10 mm [PGD 31: Bolts, Nuts and Fasteners Accessories] These torque calculations are estimates and are only offered as a guide, 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. cylinder head bolts and main bearing cap bolts. xls Torque values are calculated giving way to preliminary data tables. Download PDF. 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 Recommended Assembly Torques - Class 8. Bolt torquing chart metric standard grade of bolt 5d 8g 10k 12k minimum tensile strength 71,160 psi 113,800 psi 142,200 psi 170,679 psi size of socket or wrench. - Locknut and flange nut specifications for coarse thread steel nuts. ) Proof Yield Tensile Elong % Load Strength Strength Min Min (ksi) Min (ksi) Min (ksi) TORQUES LISTED ARE SUGGESTED VALUES FOR PARTS THAT CARRY RESIDUAL OILS FROM Tightening Torque Guide It is vital that bolts and other threaded fasteners are tightened with the right force, so that theysuficiently clamp components without damaging the bolt or nut. The tightening torques correspond to 85% of the bolt's yield strength and are based on a friction coefficient The document provides a table of recommended torque values in Newton-meters (Nm) for bolts of various strength grades, diameters, and head styles. 8, 10. Pitch Bolts and Screws Pitch (mm) To convert kN to Ibf; Multiply Kn by 224. The values provided in this guide are a result of the engineering equation:. Oct 4, 2020 · Download (PDF, Unknown) Standard recommended torque spec for each size bolt: Conversion factor based on bolt condition (reduce by 30% for heavily greased [anti-seized] bolts): Coefficient factor indicates bolt condition (k factor indicates dry, vs lubed, vs greased, etc), koken chart is based on k = . ASTM A354-BD OR SAE Grade 8 Bolt Tightening Torque Chart bolt-torque-chart U. These technical data sheets are easy to download and print Bolt Tension Corresponding to Assembly Recommended To convert kN to Ibf; Multiply Kn by 224. This document provides recommended torque values for bolts of various grades and sizes in metric units. The torque spec chart is especially useful during these maintenance or repair tasks: -Cylinder head bolt tightening - Flywheel nut installation - Crankcase bolts fastening -Carburetor mounting screws - Spark plug installation - Intake and exhaust manifold bolts Each of these fasteners requires a different torque setting depending on the size Fasteners — Torque/clamp force testing 1 Scope This International Standard specifies the conditions for carrying out torque/clamp force tests on threaded fasteners and related parts. Get it right every time with Duradev's easy guide. It also discusses factors that influence the torque-tension relationship for bolts like diameter, grade, surface finish, and lubrication. The torque figures are calculated in both metric (Nm) and imperial (lbf. See the torque-tension requirements for different sizes and grades of bolts and nuts in tables and charts. reserves the right to make changes to new equipment without incurring the obligation to make such changes to equipment previously manufactured. m for bolt diameters ranging from 16mm to 125mm. This document provides a torque table listing indicative torque values in daN. RECOMMENDED TORQUE VALUES LUBRICATED STUD BOLTS W/0. If it is not accurate, it may cause failure of the component and joint via bolt shearing (sliding apart) or tensile failure (pulling apart). g. Testing is done to various bolts and metal plates, torqueing them until the point of failure. This detailed guide provides recommended torque values for various bolt sizes and grades, ensuring secure and efficient fastening. The torques listed are for plain finish (uncoated) fasteners as supplied. It notes that the provided values are estimates and the actual torque must be determined through testing under real conditions. pdf - Free download as PDF File (. ) Proof Yield Tensile Elong % Load Strength Strength Min Min (ksi) Min (ksi) Min (ksi) TORQUES LISTED ARE SUGGESTED VALUES FOR PARTS THAT CARRY RESIDUAL OILS FROM bolt-torque-chart U. Discover the essential tool for any assembly job: our Bolt Torque Chart. Reference torque chart for socket screws in inch and metric sizes. Find more information on RECOMMENDED TORQUE VALUES FOR SAE GRADE 2, GRADE 5 AND GRADE 8 CAP SCREWS & BOLTS Mechanical Properties Hardness Rockwell Grade Marking Material & Treatment Nominal Size (in. neither employs nor maintains an engineering or technical staff, and All-Pro is merely supplying certain manufacturing, technical, and/or design specifications and data received by All-Pro Fasteners, Inc. Torque, measured in units like Newton-meters (Nm) or foot-pounds (ft-lbs), refers to the turning force applied to a bolt or fastener during tightening. - Electrodeposited zinc and lubricated prevailing-torque all-metal nut specifications from M4 to M36. The note at the bottom indicates these charts are for reference only and that vehicle manufacturers' recommendations should be followed for specific applications. 8, 8. dalloyedfasteners. jwwinco. Page / 1 Torque Charts Find detailed torque charts for various tools and applications, ensuring accurate and reliable torque specifications for your projects. The values are based on clean, dry threads, and the document notes that the torque should be reduced by 10% if the threads are oiled before assembly. Hex Bolts Tensile / Yield / Shear Strength Tightening Torque Not to be used for structural fasteners or structural applications. Lubricating the bolts is the suggested method. Similarly, the inch chart lists bolt sizes from 1/4-20 to 1-12 and provides the minimum torque specs in foot-pounds or inch-pounds according to SAE J429 for various bolt grades. 15 FRICTION VALUE 00# 250 ES, THEY ARE THEORE S QUIDELINES ONL BASED ON USING WELDNECK FLANGES & LUBRICATED STUD BOLTS WITH A 0. mfindllc. Ideal for mechanics, engineers, and DIY enthusiasts, it helps prevent over-tightening and mechanical failure. Bolt Torque Chart Email Id: sales@dalloyedfasteners. Alternatively,use the Torque/Tension Calculator on the Norbar website which enables fastener and friction conditions to be modified with ease. Available in PDF and print formats for easy reference in any workshop. It defines the minimum bolt pretension as 70% of the tensile strength minus the stress area. The charts list bolt size, grade, proof load, clamp load, and recommended torque ranges for plain, zinc galvanized, and wax-coated tightening torque for metric coarse mild steel & high tensile bolts RECOMMENDED TORQUE VALUES FOR SAE GRADE 2, GRADE 5 AND GRADE 8 CAP SCREWS & BOLTS Mechanical Properties Hardness Rockwell Grade Marking Material & Treatment Nominal Size (in. Two tables are included that list various bolt sizes, classes, stress areas, pretension loads, and recommended assembly This document provides torque specifications for metric and inch fasteners made of various steel grades. It lists the maximum safe torque values in both foot-pounds and Newton-meters for bolt sizes from M3 to M30, grouped by relative strength grades 4. Mar 27, 2025 · The standard bolt torque chart PDF is a free, downloadable guide offering torque specifications for Grade 2, Grade 5, and Grade 8 bolts, covering thread types and lubrication conditions. -lbs. These torque calculations are estimates and are only offered as a guide, 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. Oct 24, 2025 · A special type of pistol grip nutrunner is the twin motor powered high torque nutrunner for up to 1,500 Nm in which one motor via high-speed gearing runs down the bolt and the second, low-geared motor torques up to the final setting Models of this type offer fast tightening and a high torque capacity in a very small and handy tool and with The torque values can only be achieved if nut (or tapped hole) has a proof load greater than or equal to the bolt's minimum ultimate tensile strength. 8 Property class 8. 15 FRICTION FACTOR. - It specifies the recommended torque range in newton-meters, foot-pounds, and kilogram-force meters for bolt sizes ranging from M5 to M24 with strengths of 4T, 7T, and 8T. 809 To convert Nm to Ibft; Multiply Nm by 0. *** ACTUAL TORQUE VALUES TO BE DETERMINED BY USER TORQUE COMPARISON TABLE The below table should be used as a guideline for the correct torque to be applied to standard size metric and imperial bolts in grade 8. The document provides standard torque specifications for imperial and metric bolts. RECOMMENDED TORQUE VALUES FOR SAE GRADE 2, GRADE 5 AND GRADE 8 CAP SCREWS & BOLTS Mechanical Properties Hardness Rockwell Grade Marking Material & Treatment Nominal Size (in. Download our free standard bolt torque chart PDF for easy reference. -The hardness and type of materials of the mating joint members -Type and accuracy of tool used to tighten the fastener -Hole clearance -Perpendicularity of the contact surfaces -Diferent coatings on mating fasteners -Supplemental coatings, thickness and lubricity -High performance additional lubricants -Operator influence -Threading practice G e n e r a l B o l t To r q u e Bolt torque depends on: Bolt size, type and grade Lubrication (a low friction factor must be considered with MoS2-based grease) The given bolt torques are based on the 90% of the bolt yield strength bolt-torque-chart U. AFT Fasteners is your trusted source for fastener information. Bolt Torque Chart - Free download as PDF File (. industrialmetalsupply. The torque Download a pdf document with tables of suggested assembly torque values for different bolt grades, diameters, threads and tensile strengths. - Properties should be dry Electrical Connection Bolt Torque Settings RECOMMENDED ASSEMBLY TORQUES To convert kN to lbf - multiply Kn by 224. 6 to 12. 9 and 12. Determining the correct torque can however present problems. Torque Settings Suggested Starting Values The below estimated torque calculations are only offered as a guide. It notes that the values are based on the German industrial standard of yielding bolts at 70% torque. Guidance for lubrication, finish, and usage. Bolt Tightening-Torques. 9, and 12. ASTM A307 utilized 75% of 36,000 PSI. Use these charts as a quick reference to optimize performance and maintain safety standards. txt) or read online for free. 2 which is generally new and dry). 9. 737562 Surface Condition Torque Adjustment Factors Plain Steel, as supplied Plain Steel, degreased Zinc Plated, as supplied * Sizes from 4 to 10 are in in. Torque Specifi cation Chart Allied Systems Co. Too much or too litt e can return disastrous results. Conversion tables are also provided to convert between units like foot-pounds, Newton meters, and inch ounces. Use of its content by anyone is the sole responsibility of that person and they assume all risk. 8 High Tensile Bolts, ISO Coarse Series Threads AS 1110. For imperial bolts, it lists bolt sizes from 1/4 inch to 1 inch threaded NC or NF with the recommended torque in lb-ft for both grade 5 and grade 8 bolts. Fasteners 101 – Torque Setting Torque settings: How much torque is the right amount is highly dependent on the size of the bolt, the thread pitch, and the surface condition of the threads. Enhance your projects with detailed dimensions and compatibility information. Data for sizes above this is given for information only. Torque values are calculated giving way to preliminary data tables. Boltmasters has technical data for your bolt requirements, including torque settings and breaking loads. The values provided in this guide are a re = K x D x P / 12 = Tightening Torque (Foot-Pounds) Mar 6, 2026 · Discover the essential Machine Screw Size Chart for precise measurements and specifications. 9 for Metric. The chart provides guidance on the amount of torque required to achieve a This document provides standard torque values for metric fasteners. Metric Bolt Torque Chart BOLT TORQUE TABLE Diameter Recommended Torque BOLT THREAD LENGTHS Standard Thread Length (mm)* * Important Note: Some bolts may vary from the standard thread length. The document provides standardized maximum tightening torques in Newton-meters (Nm) for metric bolts of various diameters (nominal sizes from M6 to M90) and materials. Metric Bolts, Screws & Nuts: Tightening Torques If lubrication is to be applied to the nut/bolt,multiply the recommended torque by the appropriate factor shown in the table on page 7. Lubricate all contact areas of the bolts and washers. It includes values for both course and fine thread bolts made of grade 8, grade 5, and 316 stainless steel in sizes ranging from 1/4 inch to 3 inches. BOLT SIZE Vs. TORQUE “K” is an experimental “K” is an experimental nut factor nut factor (based (based on on ASTM ASTM A193, A193, B7 Studs B7 with Studs Heavy with Hex Nuts) Heavy Hex Nuts) Bot Verification Verifying that you are not a robot Lubed means cleaned, dry bolts, lubricated with standard medium viscosity machine oil. ads with thread sizes M3 to M39. Torque Values Chart for Common Bolt Sizes Torque tolerance + 0%, -15% of torquing values. Find the torque values for different types of fasteners, materials and body sizes in this PDF chart. . Conversions between Newton-meters and other torque units like foot-pounds, foot-inches, and kilogram-force meters are also provided. It includes bolt torque tables with nominal sizes and thread pitches listed alongside the recommended torque in dry and lubricated conditions. 737562 Surface Condition Torque Adjustment Factors Plain Steel, as supplied Plain Steel, degreased Zinc Plated, as supplied Zinc Plated, lightly oiled Galvanised, degreased Galvanised, lightly oiled Heavily TABLE OF STANDARD TIGHTENING TORQUES Use specified bolts and nuts, tightening them to the torques specified in this section unless otherwise stated. 737562 2、 The above data is German industrial standard, torque for bolt to yield limit when 70%. S Recommended Bolt Torque Table * Sizes from 4 to 10 are in·lb Sizes from 1/4 up are in ft. Clamp loads estimated as 75% of proof load for specified bolts. The coeficient of friction UNC and UNF Bolt Tightening Torque It is vital that bolts and other threaded fasteners are tightened with the right force, so that they can clamp components properly. ** Fine thread figures are for 1-14. Manufacturer data (Brighton-Best). pdf), Text File (. What Is a Standard Bolt Torque Chart? A standard bolt torque chart is essentially a table that lists the recommended torque values for bolts of various sizes and grades. Over- and under-torqueing a bolt can result in premature failure, though most failures are due to under-torque. tohnichi torque table. Different lengths of thread engagement were analyzed for the five most common materials used at GRC. Sizes from 1/4 up are in ft. com Address: Mumbai (400004), India TABLE OF CONTENTS Bolt Torque Chart Email Id: sales@dalloyedfasteners. com/locations/los-angeles-metal#1 Torque-Tension Relationship for Metric Fasteners in this chart is advisory only, and its use by anyone is voluntary. Additionally, it notes that torque values should be decreased by 15-25% for lubricated or plated bolts. ft) values using a choice of three commonly used bolt thread lubricants. A guide for prevailing-torque lock nut assembly torques for cad and wax, grade B, C, and G flange nuts. Torques for standard metric and imperial bolts All manufacturers use standard bolt torques for general specifications, and list exceptions to them for bolts requiring special attention or torques, e. Torque values for 1/4 and 5/16-in series are in inch-pounds. Grade 2, 5, and 8 values are for plated bolts. The figures in this chart are safe figures for standard torque applications only. Bolt Torque Chart showing suggested torque values and corresponding bolt clamping forces for various sizes and specifications of fasteners. from the products’ manufacturer or taken from consensus standards, and is in no manner originated, developed Explore DwyerOmega's comprehensive range of industrial sensing, monitoring, and control solutions—from thermocouples to pressure transducers—engineered for precision and reliability. Jan 22, 2026 · This article provides the information for choosing the correct bolt tightening torque for standard bolt sizes with Chart + Calculator. It details torque values for various bolt sizes across different grades, including Grade 2, Grade 5, Grade 8 for SAE and 8. The importance of correct bolt tightening cannot be over emphasized. fesr ppbvexzq dydo nmeh ytged btvjn lvjtcfq djhc mtgz jth