Bolts And Nuts
Hold The World Together



Plastic Bolt Plastic Connection Making Wine


From the first time man used an incline plane that makes bolts and nuts possible to the most complex double or triple threaded drive screw it still remains the most used and useful simple machine. Bolts and nuts come in so many sizes, thread types, strengths, and materials that a page could and probably should be written on each one.

Hardness and tinsel strength are very important for large applications. Bolt heads have lines on them to show how strong they are, the more lines the stronger the bolts. Always make sure that you match nuts of equal strength, because together they form the bond that fastens your project together.

There are right hand threads that twist together clockwise and left hand threads that twist together counter-clockwise.

Most applications will make use of right hand threads, thus the wise old saying righty tighty lefty loosey.

Left hand threads are used mostly at the end of shafts to hold impellers or sometime pulleys and most often in conjunction with a keyway and key or a spline. The reason for the left hand threads is to prevent centrifugal force from loosening the part connected to the end of the shaft because the force will tend to tighten the nut rather than loosen it.

Brass or aluminum are sometimes used in areas where explosive liquids or gasses are present and brass or bronze wrenches and tools used to tighten and remove fasteners to prevent sparks that may trigger explosions.

When food is being produced or processed stainless steel is often the material of choice because it can be cleaned and sterilized at high temperatures without warping and also has a non-porous surface. Stainless steel does not rust or lose its integrity and is very strong even when used in thin walled pipes or equipment.

Bolts and nuts can also be made from a variety of plastics and polymers for use with strong acids, alkali, and strong chemicals that would destroy most other materials.

Copper is used when making electrical connections because it conducts electricity with less resistance than most other metals. Gold and platinum are even better conductors than copper but are usually reserved for electronic applications because they would be cost prohibitive in large-scale connections and parts.

Check back and see what been added about your specific needs as we will be updating and adding new material all the time.


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