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The Threads on a Bolt are the ridges or grooves that screws into a Nut or into a metal frame or such.

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Q: What is bolt threads?
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Related questions

What is the difference between pipe threads and bolt threads?

NPT = pipe Briggs standard = Pipe NFT and NFC and ASAE = bolt


Is the bolt on a 3800 gm harmonic balancer R or Lh threads?

Judging by the video of someone using the starter to break the bolt loose the threads are regular right handed threads


What is the grip of a bolt?

The grip length of a bolt is the distance from the head of the bolt to the nut or where the threads start.


What is number on the head of a bolt mean?

bolt strength markings. Numbers represent metric threads and slashes represent standard threads (the greater the number/slashes, the greater the strength of the bolt.


Can the threads in the block for a head bolt be repaired?

You can use a helicoil but they are not rated for high torqque ratings. If it were me I would tap the threads to the next bolt size up and use the bigger bolt.


How many threads should a bolt engage?

As a general rule, a bolt should engage a distancegreater than or equal to its outer diameter. The number of threads engaged can then be calculated from the number of threads per inch on the bolt. So if you are using a 1/4-20 bolt, meaning it has 1/4" diameter and 20 threads per inch, you should engage the bolt 1/4" into the hole, or 5 threads. (20 threads/inch x 1/4 inches)Why: The shear stress on the threads will be equal to the tensile stress in the shank of the bolt. This means that once you thread the bolt in a distance greater than its diameter, the shank itself will fail before the threads shear off the bolt under tensile load.Sources: Design of Machinery class at Purdue University, page 10 of the following MIT article: http://web.mit.edu/2.75/resources/FUNdaMENTALs%20Book%20pdf/FUNdaMENTALs%20Topic%206.PDF


What are the differences between Internal and External threads?

Internal threads are threads inside of a hole in something. Like a nut, for instance. External threads are threads on the outside of a cylindrical object. Like a bolt, for instance. hth, Steve


What data relates to the bolt thread pitch?

Standard thread are meassured in number of threads per inch (example 1/4-20) 1/4 inch dia. bolt with 20 threads per inch. Metric threads are measured in mm between thread (M8 x 1.5), an 8 MM bolt with a thread pitch of 1.5MM between threads.


What to do when you strip the head bolt and cannot get it out?

If you have stripped the head of a head bolt you will need to either obtain a special socket that grabs stripped bolt heads (Craftsman makes one), or you will need to drill the center out of the bolt and insert an "easy out." The second option is extremely difficult. Your third option, if you are very accurate and surgically precise would be to drill the bolt to only the inside diameter of the threads. This will cut the threads of the bolt off into the threads of the hole. Then you can use a tap to clear the threads, being very careful not to allow any metal shavings to fall into the engine.


Are the threads on the bolt that hold the tensioner pulley left or right handed on a 1995 Isuzu Rodeo?

Standard rh threads


Are the threads on the crank pulley left or right handed on a 1989 Ford Festiva?

the crank pulley bolt has standard threads.


How do you remove a broken valve cover bolt on a small block Chevrolet?

the easiest way is to drill it out. drill a hole thru center of broken bolt, make sure it is smaller then the diameter of the bolt. after drilling use a easy out to remove the threads of the bolt. check that the threads in the head are ok! then put in new bolt.