Metric bolts torque pdf

Fasteners bolts, nuts and threaded rods torque, tension and loads. The importance of correct bolt tightening cannot be over emphasized. This online metric bolt torque calculator is used to find the torque of the ecoguard, lubricated and dry metric bolts. Torque reference chart metric iso 898 inch sae j429 note. Stainless steel 316 a4 also known as a4 stainless, 316 is a highly corrosion resistant grade of stainless steel. Stainless steel 188 a2 also known as a2 stainless, 188 is the most common grade of stainless steel for general use.

It should be noted that these figures are based on the first tightening of single assemblies in isolation. Lubed means cleaned, dry bolts, lubricated with standard medium viscosity machine oil. Metric torque values chart free download formsbirds. Eliminate the need for a separate washera these screws distribute pressure where the screw meets the surface without taking up as much space as a washer. Use these studs in clamping applications with tslot nuts and setup clamps.

Tightening torque tightening torque tightening torque tightening torque 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. Bolt torque specs in foot pounds or inch pounds sizethread grade 5 grade 8 grade astma574 class tensile torque reference chart metric iso 898 inch sae j429 note. Choose from our selection of metric bolts, including over,800 products in a wide range of styles and sizes. Besides using metric measurements, a metric bolt uses the distance between the threads rather than the thread pitch, used in. Lubricate all contact areas of the bolts and washers. Tightening torque chart for sae metric bolts wrench free 6 sample bolt torque chart templates in pdf suggested tightening torque values fan disc corporation approximate values for. A domed head sits above the surface of your material. Accepted formulae relating torque and tension, based on many tests are. Required torque 105 lbft e 6 inches l 24 inches torque wrench reading 105 24. Nom diapitch nom size x pitch inch bolt torque table sae j429 and asme 574 metric bolt torque table iso 898. Bolts that are fully or partially threaded, with washers and nuts are called as metric bolts. If lubrication is to be applied to the nutbolt, multiply the recommended torque by the appropriate factor shown in the table.

Bolt tightening table table 14 table 15 figure 21 1. Apply suitable axial tension it is best to do axial tension control for tightening screw, but actually it is difficult to measure. The following equation can be used to make these adjustments. Use these general purpose screws for a variety of fastening applications.

Ultimate tensile and proof loads for metric bolts according iso 8981 mechanical properties of fasteners made of carbon steel and alloy steel part 1. Metric bolts maximum torque, in footpounds, for clean, dry threads check your shop manual bolt size low grade grade 8. Clamp loads estimated as 75% of proof load for specified bolts. Always replace shear bolts with identical property class. If you poke around the web you will see many different values for bolt torques. Tightening torque tightening torque tightening torque tightening torque the torque values can only be achieved if nut or tapped hole has a proof load greater than or equal to the bolts minimum ultimate tensile strength. Many metric bolts denote the use of metric measurements with an m at the start of the bolt designation, such as m9x1. Bolt torque calculator calculate required bolt torque. Bolts, screws and studs with specified property classes coarse thread and fine pitch thread. Common workshop screw, bolt heads and nuts, tightening torque values for metric coarse and fine bolts, tensile strength.

M p x d 5000 these formulae may be used for bolts outside the range of the tables, m torque lbf. Standard torque chart for metric bolts hobbiesxstyle. Torque values chart for common bolt sizes intpi1 n m2 ftlb3 n m ftlb n m ftlb mm x pitch4 n m ftlb n m ftlb n m ftlb 14 20 7. Shear bolts are designed to fail under predetermined loads. Torquetension relationship for metric fasteners fastenal. Clamp loads for grade c lock nuts equal 75% of the bolt proof loads specified for sae j429 grade 8, and astm a354 grade bd bolts. Always refer to vehicle manufactures recommended torque setting for the specific. These formulae may be used for bolts outside the range of the. Metric bolt torque chart metric bolt course fine torque chart flywheel bolt torque bolt torque for tema ford f 150 caliper bolt torque metric.

Underover tightening of fasteners can result in costly equipment failure or personal injury. Determining the correct torque can however present problems. Service manual supplement july 2016 fastener torque specifications 4 sae and metric fastener torque specifications sae plain and zinc plated hex and socket head cap. Instruction manual for installing highstrength bolts. Tables from black book pages 44, 48, 49, 118120 type. Do not use these values if a different torque value or tightening procedure is given for specific application. These values are from the fastenall pdf or other web resources on metric bolts and fasteners. Torque, or twisting force, is not a reliable measure of bolt tension. For quicker setups than a separate tslot nut and stud, slide these bolts into tslot tracks on machine tool tables. Always refer to vehicle manufactures recommended torque setting for the specific application. Tplb fuses 800 for use with 300 to 800 amp type tplc fuses thread select one m metric, m8, fuse. The values shown in the chart are to be used as a midrange guideline. Fill, sign and download bolt torque chart online on. Tightening torque chart for metric bolts hobbiesxstyle.

The amount of force on a fastener is called as torque. Ez read hex bolt torque chart metric another in the series of ez read metric bolt chart. Tightening torque tightening torque tightening torque tightening torque 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. Metric bolts tightening torques engineering toolbox. Tightening torque hex bolts the tightening torque values given in the above table serve only as a guide. T the purpose of tightening screws is to fix one object to another object. Lubricated bolts and reduced torque lubrication effect on bolt tension and torque metric bolts head and wrench sizes ansiso, din and jis bolts metric bolts minimum ultimate tensile and proof loads minimum ultimate tensile and proof loads for metric bolts with coarse or fine threads. Common workshop screw, bolt heads and nuts, tightening torque values for metric coarse and fine bolts, tensile strength comparison chart includes. Sizeunrc torque nm inch metric size nominal tightening torque nominal tightening torque size inpounds size nm 4 5 6 8 10 14 516 38 12 58 inchbutton head metricbutton head 815 30 65. Includes screws such as pan, button, binding, and truss. Standard metric bolt dimensions and grades metric m8 1. Metric bolts minimum ultimate tensile and proof loads.