Since this calculation is intended for estimation purposes and is not intended to be precise, we round the values for output to the screen. Sometimes, the “Weight per each” that you see times the “Quantity” doesn’t equal the “Total weight”. According to the following calculation formulas, the program calculates geometric dimensions of the bolt from the specified nominal bolt diameter: Minimum diameter of the nut thread. For sizes that don’t actually exist in the marketplace, such as a 1-63/64″ diameter square nut, we make a guess based on what we know about the relationship between diameter and other dimensions. The calculator uses super-secret combinations of theoretical and sampled dimensions and weights to provide the results. We provide it as a resource for our customers, because the weight of a bolt or assembly is often needed when calculating shipping costs, or jobsite delivery requirements. This calculator can be used as an aid to help estimate the weight of bolts, nuts, and washers. If you have any questions or comments, please direct them About this Calculator What is it for? Values as accurate as possible, Portland Bolt makes no claims about accuracy andĪccepts no liability resulting from the use of the values provided on this page. You only have to insert the tool in your 3D model and you will see that the bolt head clearance for the wrench, spanner or socket is enough.The values provided by this calculator are for estimation purposes only.Īctual weight values may vary from those provided here and, though we try to make the Check our Fasteners Weight Calculator, Nut Bolt weight calculator online and Anchor Bolt Weight Calculator excel, View hex bolt weight calculator in kg in. This will help to check that the design is easy to mantain and prevent future redesign process during the assembly. If you introduce the screw standard and thread size you will have the link to the recommended 3D models tools in order to check the required space to apply torque and to remove the screw. $Note 2:$ In the case of do not know the constact surfaces material the calculator will assign a friction coefficient of 0,1 (($\mu$) is 0,1)Īnother function is to help to check the maintainability. It is not so significant in the end result. $Note 1:$ In the case that the geometry standard is unknown then the programs assigns to Dkm value the average of several screw standards. $d_0$ diameter at the relevant smallest cross section of the bolt from the DIN 13-28 (ISO Metric Screw Threads Coarse and Fine Screw Threads from 1 to 250 mm).
$A_0$ Appropriate minimum cross sectional area of the bolt.$d_2$ pitch diameter of the bolt head in mm it has been obtained from DIN 13-28 (ISO Metric Screw Threads Coarse and Fine Screw Threads from 1 to 250 mm).$\mu_K$ is the coefficient of friction in screw head (in this case we have considered $\mu_G$ and $\mu_K$ equal and obtained from UNE 17-108-81).$\mu_G$ is the coefficient of friction in the thread (in this case we have considered $\mu_G$ and $\mu_K$ equal and obtained from UNE 17-108-81).
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