Welcome to this video tutorial In this video we are going to learn how to create threads on a bolt. Let’s begin by create a new document. Part OK We are going to create.. the bolt, based on this data sheet here. Go on top plane Sketch click on Circle click on the Origin left mouse Smart Dimension As you can see here… the diameter of the bolt is 10mm Features Extrude Boss My bolt all the way is 35mm The head of the bolt is 10mm So, 35mm – 10mm Now, we are going to create the head of the bolt which is 10mm and.. has a diameter of 16mm so click on this area Sketch Circle on the Origin Smart Dimension 16mm Features Extrude Boss my head is 10mm Now, we are going to create a Hexagon here Go on this area.. Sketch Polygon make sure this is #6 on the Origin Smart Dimension as you can see.. the way that we are going to measure the Hexagon is from this line here to this line here which is 8mm and because As you can see here my sketch is Under Defined and because I want my Sketch to be Fully Defined.. I have to click one of this points here Hold Ctrl key Click on the Origin Make them Horizontal or Vertical, doesn’t mind! Exit Sketch Go on Extrude Cut The depth of the Hexagon is 5.5mm As you can see here here a 0.5 x 45 deg. Chamfer So click on Chamfer click on this area (line) print here .5mm 45 degree OK Here is also another Chamfer at the bottom of the bolt which is proportional to the bolt diameter What I mean? If you go on this data sheet here ISO standard thread For a diameter of 10mm my pitch is 1.5mm so, my Chamfer is going to be 1.5 there! click on this line here Chamfer 1.5mm OK First, we have to create the Helix and Spiral. Go on this area click on this area Sketch Click on this line Convert Entities Features Curves Helix and Spiral From here.. I have to select.. the Height and Pitch because, as you can see here.. says M10 M10 means my diameter is 10mm M10 thread pitch 1.5mm, 20mm long The 20mm long is my Height and thread Pitch is my Pitch So, that why I’m going to select the Height and Pitch here 20mm 1.5mm Start angle at 0. (Zero) Reversed Direction Clockwise OK Now, the next thing..the next step is to find which plane contains the END of this path Just..Don’t click anything! Just go on these planes here. and as you can see the Front Plane is appearing here but, unfortunately is not at the END of the path. (Doesn’t touch the end of the path) As you can see the right Plane is exactly at the END So, now we are going to create our THREAD SKETCH on this pleane. (the Right Plane) Go on this Data Sheet.. Go on right plane / Click on right plane Sketch Now we are going to create the Thread Sketch! Go on Polygon / Select the Polygon make sure this is 3 (three) ENTER OK Select the Centreline On the point to the center Click on this line here Hold Ctrl key Click on this line make them Collinear Now, let’s go to the Data Sheet here.. So, all we need here is the ”H” which is equal to 0.866 x Pitch which Pitch is 1.5mm We need also, the ”5H/8” plus Because, because, we the distance between these two points we need to plus also the ”1H/4” 5H/8 + 1H/4 which is equal… equals to 7H/8 My H=0.866 x Pitch 0,866mm χ 1,5mm 1.299mm mm This point here.. This point here…is this point on Solidworks. this point here and this point here..is this point here So, Smart Dimension Click on this line 7 x my ”H” which is 1.299/8 ENTER Now, I want to create this Curve here Which is equal to H/6 but, the way that is going to be more understandable for you, Is by creating a point on this Centreline and measure the distance here which is ”1H/4” select the point click on this centreline escape Smart Dimansion My H=1.299/4 select the Centerline from this line here to this line here escape select this Centerline Hold Ctrl key select this point make the Coincident Now, select the Trim Entities Cut this one. Power Trim here, Cut also this one. Select the 3 point Arc Click on this point here, and this point… and.. click the 3rd point anywhere. then, Escape Click on this line… Hold Ctrl key Click on the Arc we just created and make the Tangent Now, to prove that this curve we just created is also equal to H/6 we can use Smart Dimension Click on the Arc and.. as you can see is equals to 0.2165 I know that my H=1.299 we have to divided by 6 1.299/6 As you can see I get exactly the same numbers! So, this is the way that I can prove you that this Curve here exactly equals to H/6 So, now because you already know that this Curve here is ”H/6” You can go straight away and just put the numbers here using the Fillet tool which I’ll show you now.. Go backwards..(Undo) to get the previous lines here go on Fillet and type here 1.299/6 then select this point here ok that’s it then all you have to do ok all you have to do is to select this point Hold Ctrl key… this path… and make them Pierce! then, Exit Sketch Features, Sweept Cut here I have to select the Profile sketch which is this one and here the path here my path is the Helix and Spiral ok then, click on this area, on this surface here Sketch Convert Entities Features Extrude Cut Change the option here to through all select ok that’s it!