Project report on nuts and bolts

What we did in the lab First Class: 1234- We choose a stock of 0.75 inches diameter. We choose the 3/8 diameter from the above table. We choose because less work. We used Vise to hold the nut. 5- We cut the H, which is the thickness, using hacksaw. 6- We calculate H as a. H max * 125% = 0.518 b. H max * 150% = 0.6225 7- We cut based on the above calculation, then we used a double cut file to shave the metal until we reach the measurement in the above table. 8- We used the Mill file to smooth the surface of the nut. 9- It took 3 hours Second Class: 1- We paint one of the surface, and let it dry. 2- We used a Center Square to find the center line. 3456- We used a scriber to mark on the metal We used a ruler to find the center We used compass to assume the drawing before we work on the nut. We used the protractor to find the angles, and we draw lines in the directions 60, 120, 180, 240, 300 and 360 degrees so that we got 6 angles. 𝐹 7- Than we calculate F by using the following formula 𝐹 = 𝑚𝑎𝑥 so that we find F which is 2 from the center to the top. 8- We used two pieces of wood in the vise so that the surface of the nut does not damage. 9- After we connected the lines, we used the double cut file to cut each side to shape as nut. 10- It took 3 hours. Third class: 1- We assumed the center is the same 2- We picked the appropriate drill 3- We used a machine to drill 4- We used a tap and die set to thrill the nut the thrill process is to round once and go back for half round 5- We had the nut in the vise and use the hand tap 6- It took one hour. Errors happened in the lab: 1- The thickness is less than the Min in the above table. 2- Sides very 3- When drilling, we missed the center. 4- When we were thrilling the hole, we were not straight. Safety equipment: 1- Goggles. ...