Due to the lack of information that you gave me with your question I cannot anwer it at this time. Please give more detailsabout what you are wanting to know..
It refers to the diameter of the screw. More precisely, it is a 0.138" diameter screw. You can get it in with various head style and thread pitch.
Increase the IMA
The diameter does not affect the length. It is a separate dimension. Diameter is the cross sectional measure of a circular object.
the IMA increases?
The ideal mechanical advantage, or IMA, of an inclined plane is equal to the length of the incline divided by its height. The IMA is calculated without regard to friction.
Ideal Mechanical Advantage can be found using this formula IMA = DE / DR . Ideal Mechanical Advantage is a theoretical calculation, AMA,Êactual mechanical advantage is calculated with this formula, AMA = R / Eactual .
There are all sorts of screw diameters - major, minor, pitch, mean, etc., but in general a screw diameter is a called by its nominal diameter which is the major diameter of the screw, approximately. For example a 1/2 inch screw has a nominal diameter of 1/2 inch.
a screw with closely spread threads
ima caca
It refers to the diameter of the screw. More precisely, it is a 0.138" diameter screw. You can get it in with various head style and thread pitch.
This is a tool that is used to measure the pitch diameter of a screw. This tool looks like a standard micrometer except that the anvils are specially configured to reach into the screw thread groove and touch the pitch diameter of the screw thread. The screw thread micrometer does not measure any other aspect of the screw thread. It does not measure the: pitch; threads-per-inch; major diameter; minor diameter; flank angles; lead; helix angle.
Holding the diameter of the screw constant, closely spaced threads (fine pitch) have a higher mechanical advantage than thread which are spaced farther apart (course pitch). Mechanical advantage is the ratio of travel of the applied force to the ratio of the imparted force. Because the screw must rotate more times to insert a given depth, fine pitch has a higher mechanical advantage.
to cheak the diameter of something
square the diameter of screw.
This is a tool that is used to measure the pitch diameter of a screw. This tool looks like a standard micrometer except that the anvils are specially configured to reach into the screw thread groove and touch the pitch diameter of the screw thread. The screw thread micrometer does not measure any other aspect of the screw thread. It does not measure the: pitch; threads-per-inch; major diameter; minor diameter; flank angles; lead; helix angle.
Design of the screw : procedure core diameter of the screw is determined using allowable stress and the given load. Using the core diameter, the rest of the diameters and the pitch will be determined. -As screw is subjected to twisting moment, higher value of screw is selected. Select the dimension of dc w.r.t pitch Mean diameter d= do- p/2
First step: Find the core diameter of the screw second step: Find the torque required for lifting the screw