Standards for metric bolts are promulgated by the ISO, but adopted by individual nations. Many metric bolts denote the use of metric measurements with an "M" at the start of the bolt designation, such as "M9x1. ) BOLTS of yield strength (Sy) MATERIAL Sy (MPa) LUBR. M & D SPECIALISED FASTENERS cc. In a bolted flange, the applied torque generates the axial load in the bolt. This A325 Metric Bolt chart shows the approximate torque range required to achieve the specified load needed to fasten these typical metric structural bolts sizes. m Newtons N. Bolt tightening sequence or torque sequence is defined in torque tightening procedure. Provide bolts and nuts that meet the standards given in Table 1. Bolt torque calculator for the calculation of tightening torque and preload for bolts. AS2129 originates from BS10 and has been metricated. Mlid Steel Countersunk Square Plough Bolts Mlid Steel Countersunk Nib Bolts 6. But neither the external threads of the bolt nor the internal threads of the nut are exactly. 6 M2 M3 M4 M5 M6 M8 M10 M12 M14 M16 M20 M24 M30 M36 M42 - 3. Bolt Torque. Identifying bolt grades and head markings for US grades 2, 5 and 8. This applies to clean and and dry parts. Product Categories. A2 - Din 933/ISO 4017. How to Substitute one with another? Metric or imperial bolt do not perfectly fit with one another. 3, Table 29, "Dimensions of Plain (Unslotted) and Slotted Regular and Large Hex Head Screws. In inch units, torque is usually measured as Lb-Ft (pounds feet) or Lb-In (pounds inch). They are of two types, metric flange bolts and metric hex bolts. Bolts & Nuts HIGHT TENSILE, BRIGHT ZINC PLATED British standard fine (BSF) was used on British cars in the thirties and forties and is the finer version of 'British Standard Whitworth' (BSW). This is the most widely used method. Strength of standard bolts Sizes up to 1/4", torque in inch-pounds. High Tensile Hexagon Bolts 9. com Recommended Fastener Torque: Material Yield Strength Material Tensile Strength Approximate Material Shear Strength Oiled. Browse Categories Answer Questions. Shear bolts are a type of anti-theft bolt, used in many industries where robust permanent security fixings are required. Wrench Sizes for Standard Bolts, Nuts and Screws Pipeline Supply and Service Co. In addition an. 800-871-5022. Captive fasteners are used to provide a secure fixture and help to prevent damage or loss of screws in a housing assembly. U-Bolt-It supplies high quality metric bolts to all industries, including metric grade 8. Reed Thru-Bolt™ ratchet wrenches work faster than pipe wrenches or adjustable wrenches for tightening or loosening nuts on long, threaded bolts of service saddles, repair clamps, flanges, mechanical couplings, etc. Performing at Minskoff Theatre. Full Line Catalogs. Machine Bolt lengths (L) include the height of point. 015 In, Language English, Provides Common Workshop Screw , Bolt Heads And Nuts, Tightening Torque Values For Metric Coarse And Fine Bolts, Tensile Strength Comparison Chart. The bolt acts like a spring. Metric to Imperial Conversion Table. 9 (or even metric 8. This is again in the "EZ Read" format so those that are tired of looking at blurry and fuzzy charts can quickly determine the grade of bolts. It would therefore be preferred to design bolt - nut assemblies whose mode of failure would always be by shank fracture of bolt. is india’s leading Astm A193 Grade B8m Bolts Suppliers, bolts stockist, bolts suppliers, bolts exporters and importer ,bolts dealers, stockholders, indentor, bolts manufacturers, retailers, wholesaler, bolts distributors, traders, specialized in delivering consignments on time by means of Express Courier Services DHL, FedEx, UPS, TNT, etc. An improper hole size, say too small, would not allow the tap to fit. 8 is about 30% weaker. Isolated foundation calculation (imperial) Free, for a limited period, login required. For those who want more detail about what it takes to be rated among the best torque wrenches, we've compiled the following report. You can easily create a bolt torque chart using Microsoft Excel, or some other spreadsheet. b For uncoated hot-rolled, but not standard fasteners with cold rolled threads. Blanks in all diameters available which can be completed in 2-3 weeks based on your requirement. Intro Text. 6 Norbar - Total Torque Control www. Request your free sample today. Torque shown in Lbs*ft or N*m. Similar thickness to the imperial Table 3 washers, also available on this site, but with a larger outer diameter. less thread wear. Select the gasket type and whether you require a full-face (Type E) or a ring style (Type F) configuration. tachart ltd, t/a Bolt & Nut Manufacturing, an experienced CNC precision engineering business. The electric motor rating is 50 hp at the base speed and the system peak torque at the coupling is estimated to be 150,000 lb-in. studbolt fasteners edition 3 www. , and assume Alloy Steel Bolts (A193 B7 w/ 2H Nuts) with oil/graphite lubrication. With ubiquitous usage in many fields of industry, fasteners come in a similarly wide variety, differing even within the range of a single design in everything from size to material, coating, inspection criteria, etc. Coarse Thread Series (UNC/UNRC) is the most common designation for general application bolts and nuts. Available grades run from 2 to 8, with 8 the strongest. 6 x 1/4" diameter x 1/2" long 20 tpi unc a2 stainless socket caps imperial hexagon allen bolts screws harley, motorbikes, classic cars, gp camera mount. Sud Bolt lengths (L*) do not include the height of points. Never machine, grind or cut eye bolt. Imperial bolts typically use markings on it. ft) A/C compressor bolts. • Supply Part Number: 9702365 • AS 06/14 Torque Poster For additional technical information, contact Fastenal Engineering at [email protected] 80% goes into countering useless friction between the head and threads. RAD Torque Systems is a leading Canadian manufacturer of pneumatic, battery powered, and electronic pistol grip torque wrenches. Most Bolt Torque Charts use this formula. Definitions of terms are located below the chart. The amount of force on a fastener is called as torque. Metric high tensile, precision hexagon head bolts, screws and hexagon nuts. TIGHTENING TORQUES FOR IMPERIAL (U. For a successful assembly, tightening should be carried out with a slow smooth action. SAE and Metric Fastener Torque Specifications Rev A TORQUE CHART - SAE PLAIN AND ZINC PLATED BLACK OXIDE BOLTS, SHC. Many times I have been asked if a chart is published on the recommended tightening torque for various bolt grades and sizes. Bolt Size TPI Proof Load (lbs) Clamp Load (lbs) Tightening Torque (ft lbs) Galv + Wax Tightening Torque (ft lbs) Galv. is your source for ASTM A193 B7 Metric Bolts from M10 to M36 Diameter, and we can provide a variety of finishes. 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. Working directly with two factories, We supply some of the largest outlets in the UK and Europe with high quality, BA, BSF, BSW, UNF, UNC and Metric threaded hardware. (Table 3) DISMOUNTING 1. Imperial and its vendors disclaim all warranties, expressed or. A hole of a specific size is needed for the tap. 5 270 M18 2. Axial Tightening Force for Bolt and Fatigue Limit · The proper axial tightening force for a bolt should be calculated within an elasticity range up to Load 70% of the rated yield strength when the torque method is used. The Official HYTORC App gives you instant access to torque charts, safety and operational videos, product manuals, service center locations and our comprehensive bolt load calculator. ) Get the Chart. cylinder head bolts and main bearing cap bolts. You may also select your retainer, seal and washer material. Well, there's a bit more to it than that. Well, there's a bit more to it than that. It is very common to find an older car or bike that left its maker with a mixture of imperial and metric nuts and bolts holding it together. The jGun Single Speed is the simple choice for air-powered industrial bolting. You can calculate an approximation thinking that the bolt will break at the core, then finding what torque will produce that tension, considering the pitch. More Information. 6 M2 M3 M4 M5 M6 M8 M10 M12 M14 M16 M20 M24 M30 M36 M42 - 3. SAE Standards For Bolts The SAE has established a sequence of grades from 0 to 8 for steel bolts, on the basis of the metal from which the bolt is made and the manner of manufacture. Hex Head Bolt Dimensions ASME B18. Always refer to vehicle manufactures recommended Torque setting for the specific application. We will keep this chart updated so if you want to add information or notice any errors please let us know. imperialsupplies. The metric (SI) unit of torque is the newton metre (Nm). The flattened root was a bad. Some spanners may be marked AF. Product Categories. 25 17 26 29 29 Metric Tap and Drill Chart. Tightening torques for stainless steel bolts Introduction. bolting torque table 3 - use only with a193 b8, cl1 bolts at 540°c - 650°c on uninsulated flanges. Torque Tool Supplies offer the brands that you know and trust, which have been proven in the field. TORQUE: The energy taken to twist the nut up the thread of the bolt (Measured in Nm). Imperial bolts are measured in inches. Bolts subject to combined tension and shear should satisfy the following expression:. These torque values are intended for the average strength bolt/screw and there are some fasteners which are made from very weak steel. ) bolts (from 1/4" to 3"). Inches are measured threads per inches. TORQUE-TENSION REFERENCE GUIDE Printed in U. Bolt tensioning proper bolt torque zero s inc bolt tensioning rxp x 260 pump bolt torque specsbolt chart stainless steel concrete anchor bolts and. RAD products have proven to be successful all over the world in such industries as oil & gas, petrochemical, mining, aerospace, power generation and manufacturing. They do not include any safety factor and should. Alternatively,use the Torque/Tension Calculator on the Norbar website which enables fastener and friction conditions to be modified. 8 Fastener Handbook M 8. The below chart refers to usage in steel. Heavy Duty Truck Wheel Bolts. Always refer to the manufacturers recommended torque values if possible. com and the new Forums can be found at forums. Thread classes of fit. and assume new A193 Gr. bolt torque settings injector clamp bolts ford fiesta tdci 53 reg - Ford 2005 Fiesta 1. Torque is a measure of how much twisting is applied to a fastener. µ TIGHTENING TORQUE in Lbs·ft Multiply by 1. Preload tension is necessary to keep the bolt tight, increase join strength, create friction between parts, and improve fatigue resistance. A torque wrench is used where the tightness of screws and bolts is crucial. Bolt Size TPI Proof Load (lbs) Clamp Load (lbs) Tightening Torque (ft lbs) Galv + Wax Tightening Torque (ft lbs) Galv. Use 85% of the specified torque value for lubricated fasteners. Remove the tailgate stay cable and replace the bracket with the accessory tailgate bracket. 015 In, Language English, Provides Common Workshop Screw , Bolt Heads And Nuts, Tightening Torque Values For Metric Coarse And Fine Bolts, Tensile Strength Comparison Chart. This means if you take your bolt and measure. There are many variables affecting the torque-tension relationship, such as human error,. If you poke around the web you will see many different values for bolt torques. english/ metric bolt substitution table equivalent metric bolt substitution - astm grade bolt sizes f - 568 class 4. and imperial bolt is easy. Square drive Hydraulic Wrench with Impact Sockets, individual Torque calibration for RAD Tool Cradle Regulator, Lubricator and Water Trap. ) suggested tightening torque (ft. Print This Page. The important thing here is that you need to print them out at actual size. 9 mm Newtons N. Metric Bolt Torque Table - CNCexpo. This will be a work in progress as I get more time I'll add more then the SAE Bolt Marking for Imperial which are different for Metric. Imperial to Metric, and Metric to Imperial unit conversions, covering length, power, torque, temperature, volume, fuel consumption, pressure, weight Skip to main content Convert metric size bolts to imperial sizes, covert imperial bolt sizes to metric. The jGun Single Speed is the simple choice for air-powered industrial bolting. Fastener Identification Chart; Hardness Conversion Chart; Metric Thread Pitch Chart; Nut Compatibility Chart; Nut Weight Chart; Standard Thread Pitch Chart; Torque Chart; Back; Technical Dimensions. Flange Bolt Torque Sequence and Torque Table - A Complete Bolt Tightening Procedure Flange joints require proper tightening to avoid the leak of the fluid from the joint. Where bolt integrity is vital (e. Bolt elongation measurement ± 5% 5. Square drive Hydraulic Wrench with Impact Sockets, individual Torque calibration for RAD Tool Cradle Regulator, Lubricator and Water Trap. Also available in metric. 8947573 MPa per ksi. Bolts are graded by tensile strength and are easily identified by the number of slash marks on the head of the bolt. Available NAS bolts include Close Tolerance Bolts, Drilled Bolts and Self-Locking Bolts. is equal to. The following table of hex bolt head dimensions was adapted from ASME B18. Some alloys use the tapered faced bolt and usually have a lower torque requirement i. Size Recommended Torque; Grade 2 Grade 5 Grade 8 18-8 S/S Grade 2, 5, and 8 values are for slightly lubricated bolts. Torque Values Stainless Steel Bolt Table Chart. A bolt circle of 4x100 would indicate a 4 lug pattern on a circle with a diameter of 100mm. Captive fasteners are used to provide a secure fixture and help to prevent damage or loss of screws in a housing assembly. AS2129 originates from BS10 and has been metricated. * * Use 75% of the specified torque value for plated fasteners. To calculate the torque in Imperial units, you just multiply the force by the distance from the center. "ksi" indicates load in ___. The Ultimate Critical Service Triple Offset Valve Flange Bolting Guide All information herein is proprietary and confidential and may not be copied or reproduced without the expressed written consent of BRAY INTERNATIONAL, Inc. More Information. Imperial bolts are measured in inches. Is there a point where the torque and horsepower curves for an engine actually cross? Considering the point where the torque and power curves appear to cross, we can see that when torque is in lb-ft and power is in horsepower, the crossing point is at a different speed (RPM) from when the torque is measured in N-m and power is in Kw. Crosby's full listing of Eye Bolts from machinery, nut, rivet, and screw needs - you'll find them all listed on our website and in our Crosby Catalog. There are many common flange standards and flanges within the same standard can etiher be flat (commonly cast iron, ductile iron) or raised face (commonly cast steel and stainless steel). It’s not enough to know the correct torque values for your fasteners; you have to apply the correct amount of torque as well. Standards for metric bolts are promulgated by the ISO, but adopted by individual nations. Finished Hex Bolt Dimensions; Finished Hex Nut Dimensions. Land Rover and other smaller,specialised car makers used a mixture of imperial fittings into the 1990's. Heli-Coil offers three types of. Print out in English or French (Excel Version). S310 – UNC Bare Steel. The Charts are readings we have taken from tool models during service work. A metric ISO screw thread is designated by the letter M followed by the value of the nominal diameter D (the maximum thread diameter for external thread and the minimum diameter for internal one) and the pitch P, both expressed in millimetres and separated by the hyphen sign, -(e. Never use regular nut eye bolts for angular lifts. Free Metric Bolt Torque Chart Pdf downloads. Cancel reply. You may search for your product based on diameter by selecting a measurement on the Size dropdown. TIGHTENING TORQUES AND THE TORQUE-TENSION RELATIONSHIP All of the analysis and design work done in advance will have little meaning if the proper preload is not achieved. Sometimes it could be compression but in this case it is torque. The bolt acts like a spring. The units used to measure torque are in the form of force times length. Seating and Sealing: By applying the higher initial seating torque to seat the un-marred HDPE faces, without gaskets, the final residual bolt torque (RBT) at the HDPE sealing stress is. Remove weight off bearing via a sling or jacks. 0L 4 cyl head bolt torque? Why don't you just go up to the Adults only sticky at the top of this forum and download an OEM service manual. TIGHTENING TORQUES FOR IMPERIAL (U. imperial taps (291) button dies & die nuts (224) spiral taps (18) specialty taps (7) thread repair (208) tap & die holders (20) nuts & bolts. This specification contains the equations used by the Acme/Stub Acme AutoProgram. lbs, and the 3 bolts that bolt the strut to the frame fender is 37 ft. Metric converter for many metric and imperial units of temperature, weight, length, area and volume. The units used to measure torque are in the form of force times length. Important: the hexagon sizes shown in the tables should be used as a guide only. NOTE: The size of the hexagon of a bolt or nut has no relevance when defining a thread size. Using the manufacturer recommended torque also helps guarantee that there isn't either too much or too little pressure on any of the assemblies to which the wheel attaches. The bolt acts like a spring. Another reason is if you know the property class of an existing bolt and you know its diameter, you can determine the suggested basic torque setting, even if you don't have a reference to the original torque. In general the proper torque spec is usually around 65-70% of the failure torque rate. is your source for 17-4 PH Stainless Steel Heavy Hex Bolts. For example, if your engine has 350 horsepower then the torque would be 367 foot-pounds, at 5,000 RPM. 2 has been used which assumes threads are plain finish, burr free with a light oil coating. High strength bolt preload calculation, bolt tightening torque values (Eurocode 3 and EN1090-2) metric EC3 EN1090-2 bolt preloading torque Open calculation sheet Preview. Even experienced tradesmen over- or under-torque bolts. 9 mm Newtons N. On these pages you can find Chrysler vehicles Bolt Pattern and Offset. We have an extensive inventory of NAS bolts. If you go with the new style valve cover gasket {the flat one} be sure to leave the old o-ring in valve cover to keep the new gasket from splitting. Title: BOLT TORQUE CHART Created Date: 20090804193919Z. I use the 'ol Torquestruct-o-matic 69 to break bolts. fwb Tech & Download Content Flange Tables, Bolt Sizing and Gasket Materials The British standards relate to metric sizing in the case of BS 4504 and imperial. · The fatigue strength of bolt under repeated load should not exceed the specified tolerance. Socket Cap Screws. Torque settings. Lubed means cleaned, dry bolts, lubricated with standard medium viscosity machine oil. I seriously doubt any of the bolts are over imperial 8/ metric 10. TORQUE ASTM A193 B7. Online converter for units of torque. Over- and under-torqueing a bolt can result in premature failure, though most failures are due to under-torque. Whats people lookup in this blog: Bolt Torque Table Imperial; Torque Table For Bolt Tightening Imperial; Imperial Bolt Torque Chart; Bolts Torque Table; Bolts Torque Chart; Imperial. Recommended Bolt Torque Table Size Recommended Torque Grade 2 Grade 5 Grade 8 18-8 S/S Bronze Brass Coarse Fine Coarse Fine Coarse Fine Coarse Fine Coarse Fine Coarse Fine. (05/14/2019): Square drive measurements have been changed from metric to imperial. " The appropriate values are listed in our Dimension table. Regardless of the type, every clutch has a torque capacity. …to verify that you have matching lug or bolt thread sizes, first install the lug nuts or bolts without the wheel. Never use eye bolt that shows signs of wear or damage. High Torque Impact Sockets sets. bolting torque table 2 - astm 193 grade b7 and astm 193 grade b16 stud bolts. Second measure the pitch Pitch is threads / per unit. 73756 = Foot Pounds. Truthfully, product information rarely supplies torque values. ASTM's fastener standards are instrumental in specifying, testing, and evaluating the material, dimensional, mechanical, and metallurgical properties of the various forms of hardware fasteners. Using a torque wrench, tighten the central bolt to the recommended torque given in the table on the previous page. Torque is also the easiest way to explain mechanical advantage in just about every simple machine except the pulley. 9 M36 993 (731) 2649 (1953) 3664 (2702) 4282 (3158). We measure torque by multiplying two factors—amount of force applied and distance from the point of application. In inch units, torque is usually measured as Lb-Ft (pounds feet) or Lb-In (pounds inch). 2 has been used which assumes threads are plain finish, burr free with a light oil coating. Bel-Metric sells metric hardware & specialty automotive supplies nationwide. Just as with grade 36, grade 55 covers anchor bolts in diameters ranging from 1/2″ through 4″. 'lb' = pounds & 'oz' = ounces. This is the start of a simple page for common bolt head markings. Bolts are graded by tensile strength and are easily identified by the number of slash marks on the head of the bolt. In some cases slightly larger bolt holes provide better clearance as metric bolts are specified in lieu of UNC bolts used by BS10. ANSI Hardware Design Guide Design Torque and Force Calculations. english/ metric bolt substitution table equivalent metric bolt substitution - astm grade bolt sizes f - 568 class 4. Tightening torque is not influenced by the bolt length so easy to standardize. " and Unified thread. Heavy Duty Truck Wheel Bolts. Similar thickness to the imperial Table 3 washers, also available on this site, but with a larger outer diameter. Fastener Standards address the dimensions, testing, and use of screws, bolts, nuts, rivets, flanges, studs, and so forth. Below is a chart with the dimensions of our stocked high tensile bolts, In accordance with Australian standards. "ksi" indicates load in ___. Direct tension bolts are one way to actually controll pressure in a fastener. Heavy nuts are quite common and readily available in various types and sizes but heavy head bolts have more limited availability. bolt tension (lbs. 54 kits found for Flywheel Bolts ARP offers two styles of Flywheel bolts: premium grade Pro Series, with a 200,000 psi rating and High Performance, with a 180,000 psi rating. The amount of force on a fastener is called as torque. TIGHTENING TORQUES FOR IMPERIAL (U. Common BS 10 Table D Dimensions BS 10 Table E Dimensions Flange Size Designation (Nominal Bore of Pipe) Overall. Flange bolts virtually eliminate the need for washers because the area under the bolt head is wider and creates a larger area for even distribution of pressure. ) bolts (from 1/4" to 3"). Metric Bolt Tightening Torque Chart. The torque, or moment of force is the product of the force and the distance to a fixed point or axe and cause the rotation. 4 Recommended maximum bolt loads RECOMMENDED MAXIMUM BOLT LOADS AND TORQUE VALUES (METRIC COARSE THREADS) 4. Metric Mild Steel Hexagon Bolts, Screws and Nuts (SABS 135/DIN 555) 1 M & D SPECIALISED FASTENERS cc. Generally speaking, the user can follow the below steps to choose the proper motor and driver. S313 - UNF Bare Steel. The best way to determine correct torque is through experimentation under actual assembly conditions. Prior to the late 1940's there were no torque specifications. SizeUNRC Torque (N•m) Inch Metric Size Nominal Tightening Torque Nominal Tightening Torque Size (In-Pounds) Size (N•m) 4 5 6 8 10 1/4 516 3/8 1/2 5/8 Inch-Button Head Metric-Button Head 8-15 30 65 125 200 360 1000 1750 M3 x 0. Consult with our team of experts for specialised industry information on the right fastener and tool for any project or assembly. For bolting specifications that do not have a published proofload, it is usually calculated at 92% of minimum yield strength. Recommended Bolt Torque Values for Stainless Steel and Nonferrous Fasteners (inch series). Common bolt torque values can be looked up, but finding an accurate reference isn’t always easy. I hope to do that by the use of pictures , videos and the written word. to the remote locations. Suggested Maximum Torque Values for Screws and Bolts. AS4087 is an update of AS2129, however AS2129 is still widely used so it has not been deleted as a standard, however, it now only covers AS table D to H. Metric high tensile, precision hexagon head bolts, screws and hexagon nuts. 8947573 MPa per ksi. Metric Bolt Torque Table - CNCexpo. 1960 Series. The metric (SI) unit of torque is the newton metre (Nm). Heli-Coil offers three types of. Calculation of the maximum pressure under foundation imperial foundation footing pressure Open calculation sheet Preview. Several discussions in this technical section stress the importance of preload to maintaining joint integrity. Print This Page. With ubiquitous usage in many fields of industry, fasteners come in a similarly wide variety, differing even within the range of a single design in everything from size to material, coating, inspection criteria, etc. Metric Bolt Tightening Torque Chart images. 8 bolts, and work with the top manufacturers in the industry to provide the highest quality bolts for our clients. a 1/2" AF spanner is 1/2" across and fits a 5/16" diameter UNF nut. Torque Bolt Tables PAGE: 17. Bolt Torque Table Stainless; Bolt Torque Table Imperial; Add a comment. I learned: Good Quality Grade 8 bolts can handle 200-250% rated torque. Well, there's a bit more to it than that. All manufacturers use standard bolt torques for general specifications, and list exceptions to them for bolts requiring special attention or torques, e. Use a torque wrench to assemble bolted connections in the following sequence: a) Tighten nuts to 1/3 of the estimated torque value following the tightening sequence (Fig. Because these are estimates and conditions can vary in real world applications this formula and torque charts should only be used as a guide. It would therefore be preferred to design bolt - nut assemblies whose mode of failure would always be by shank fracture of bolt. Torque Specifications Recommended Torque in Foot Pounds (Newton Meters) SAE Grade 2 (No Dashes) SAE Grade 5 (3 Dashes) SAE Grade 8 (6 Dashes) Bolt Diameter "B" Wrench Size "A" 8. It is caused by a pushing or pulling force at 90° from the axis of a part. There are 6. The length shown includes the height of the Raised Face in all cases. Due to many variables that affect the torque-tension relationship like human error, surface texture, and lubrication the. A Newton is defined as the force necessary to move one kilogram one meter per second. Imperial bolt torque chart will include all kinds of information being listed on the chart, such as dimensions, images, engine characteristics, weight, displacement, essential bolt tightening torques, etc. 25 = 25 \text{ Nm}\] The same torque could be obtained if the lever arm was 1 m and the force only 25 N. TECHNICAL INFORMATION Metric Thread Pitch Table Metric Pitch Table Metric Diameter Pitch mm Coarse Standard Fine Standard 3mm 0. PIPING PRODUCTS. Bolted steel parts shall not be separated by gaskets and shall fit solidly together after bolts are tightened. Machine and lag bolts are the preferred fasteners for fastening heavy wood members in structures. Strength of standard bolts Sizes up to 1/4", torque in inch-pounds. M & D SPECIALISED FASTENERS cc. 1 Dimensions of Hex Bolts - Imperial units; US Hex Bolts - Metric - ANSI/ASME B18. With ubiquitous usage in many fields of industry, fasteners come in a similarly wide variety, differing even within the range of a single design in everything from size to material, coating, inspection criteria, etc. Unified Hexagon Bolts / Sets - UNC 7. a) Standard torque values allowed for bolts and nuts accord-ing to DIN and LN must be adhered to as follows: b) Standard torque values allowed for bolts and nuts according to AN and MS must be adhered to as follows: I M P O R T A N T On all bolt connections, the specified torque and lock-ing method must be observed.