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Showing content with the highest reputation since 10/28/2020 in all areas

  1. What is the purpose of different types of bolt/screw heads (I am more concerned of bolt heads).I have seen that bolts having same material of construction, area of application(temperature, structural or non structural application etc.) are having different bolt head design (hexagon, double hexagon, Tee head etc.). Does it have some relation to the torque applied or constraints in tool used to tight them?
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  2. Not knowing the application and loads. The most likely screw sizes would be #10-32 UNJF-3A. This will require using MS21209F1-15L at minimum. If you using Boeing specs that would callout the holes to BACD2079N030B3R. If Airbus, I would have to look that up. Note: There would always be tensional loads. All Screws/Bolts are designed to have tensional loads. There are some that are shear loaded and those have a solid shank larger than the threads that require match reaming to shear load. The most common application for that method would be the seat tracks or structural framing.
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  3. See https://staqoo.ie/blog/types-of-screws-and-bolts/https://staqoo.ie/blog/types-of-screws-and-bolts/
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  4. Vinay, the different types of bolt/screw heads have specific applications and some are cosmetic. Most are for different types of applications. For example, Countersunk heads are low profile and allow for placement in limited spaces, but due to its characteristics hole to hole tolerances would have to very tight and they are not for high load applications which might cause pull thru. The you have x-recess which also a low load applications where the strength is only what your hand can apply. Then we have the hex patterns where are mostly used in high load application. If you want to go even hi
    1 point
  5. Important to note the direction of forces to fasten the screw, specially in non-metalic: sloted and Phillips need a perpendicular force on top of the rotating force, Insufficient perpendicular force favors damage of the head. Important in hard to reach locations.
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  6. Interesting subject, I am currently involved in the analysis of a complex assembly build and the most common specified fixing is a button head set screw, followed by a cap head. Obviously a button head is more user friendly due to it's lower profile but I imagine it would lack the ultimate head strength of a button head due to the reduced cross sectional area. A circular button or cap head will give a more uniform clamping force distribution, even when either a button or hex head is used with a washer. I know there is a limit to the size range offered with socket head screws so
    1 point
  7. Silicone Mold Rubber proven to be better in my experience, but it depends what is your purpose.
    1 point
  8. Version 1.1.0

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    A COMPLETE INSTRUCTOR AND STUDENT SUPPLEMENT PACKAGE - Continued These ppts are set of instructor and student supplements. . A FOCUS ON DIAGNOSIS AND PROBLEM SOLVING The primary focus of these ppts is to satisfy the need for problem diagnosis. Time and again, the author has heard that technicians need more training in diagnostic procedures and skill development. To meet this need and to help illustrate how real problems are solved, diagnostic stories are included throughout. Each new topic covers the parts involved as well as their purpose, function, and operation, and how to tes
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  9. You can do many things after your Mechanical Engineering graduation. But the path you need to choose depends on you. You can have many opportunities as compared to other branches after completion of graduation. You can apply for job in any company or apply as a trainee. You can go for GATE coaching to get job in PSUs or post graduation. You can do MBA You can do any courses such as HVAC, QC etc You can also do MS in foreign countries You can go try UPSC exams As a Mechanical Engineer you can even work on IT companies. From my experience if you are determ
    1 point





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