Another name for self tapping screws is self drilling screws. The clue is in the name. They drill the hole in the metal for you so you do not have to drill what is called a pilot hole first. This is useful when you want to mount things like computer monitors onto metal shelving because you do not have to fiddle around matching up holes, you just drill the screw through everything and you only have to do it once.
These gadgets are really clever. You get the job done without needing extra pairs of hands or starting any arguments. They are also used to mount security cameras and in dental and other types of surgery. Dental implants are a type of linear actuator.
Like other screws, the heads of the self tapping kind are either plain or cross-headed. The cross-headed, or Phillips, variety give a little extra stability when juggling two or more layers of material. It is amazing how a trivial difference in structure can make a huge difference in function. It really is a matter of having the correct tool for the task at hand.
Most screws have a right-handed, or clockwise, thread. To tighten, turn clockwise; to loosen, turn counter-clockwise. The easy way to remember this is righty-tighty, lefty-loosey. The same mnemonic works for opening and closing jars as well as adjusting the radiator.
There are numerous other kinds of screw. There are differences in the pitch (the distance between threads), and they differ in composition (steel, zinc, copper, nickel, brass or chromium). They can have different heads, flat or round; plain or Phillips head (cross head).
The guy who invented the ingenious screw was named Henry Phillips. He purchased the rights to the design from his pal, John P. Thompson. He tweaked the design a bit and then had it patented. He first sold the device to General Motors, who used it in the Cadillac. Phillips sold the patent in 1945 to Ford Motor Company for a sum of five million dollars. This is a huge amount of money today and a huge amount of moolah way back then.
When a screw is likely to face strong counterclockwise torque, which would loosen a right-handed screw, a left-handed screw is the correct choice. For instance, the left side of a bicycle has a left-handed thread. Anything with helical threads can legitimately be called a screw. The propeller of a ship is an example, as is an Archimedes' screw water pump.
It is really fun to watch self tapping screws in action. You can get quite a lot of work done in very little time, a satisfying prospect. Juggling two or more pieces of material together and trying to get the screw to hold can be tricky and exasperating. In many ways, simple devices are better than more complicated ones. There are a number of varieties of screw. They have different diameters and different distances between individual threads. They are manufactured from several different types of metal, including copper, nickel, chromium, brass, zinc and steel. Another important difference is in the construction of the screw's head, whether it is flat, round, plain or Phillips headed.
These gadgets are really clever. You get the job done without needing extra pairs of hands or starting any arguments. They are also used to mount security cameras and in dental and other types of surgery. Dental implants are a type of linear actuator.
Like other screws, the heads of the self tapping kind are either plain or cross-headed. The cross-headed, or Phillips, variety give a little extra stability when juggling two or more layers of material. It is amazing how a trivial difference in structure can make a huge difference in function. It really is a matter of having the correct tool for the task at hand.
Most screws have a right-handed, or clockwise, thread. To tighten, turn clockwise; to loosen, turn counter-clockwise. The easy way to remember this is righty-tighty, lefty-loosey. The same mnemonic works for opening and closing jars as well as adjusting the radiator.
There are numerous other kinds of screw. There are differences in the pitch (the distance between threads), and they differ in composition (steel, zinc, copper, nickel, brass or chromium). They can have different heads, flat or round; plain or Phillips head (cross head).
The guy who invented the ingenious screw was named Henry Phillips. He purchased the rights to the design from his pal, John P. Thompson. He tweaked the design a bit and then had it patented. He first sold the device to General Motors, who used it in the Cadillac. Phillips sold the patent in 1945 to Ford Motor Company for a sum of five million dollars. This is a huge amount of money today and a huge amount of moolah way back then.
When a screw is likely to face strong counterclockwise torque, which would loosen a right-handed screw, a left-handed screw is the correct choice. For instance, the left side of a bicycle has a left-handed thread. Anything with helical threads can legitimately be called a screw. The propeller of a ship is an example, as is an Archimedes' screw water pump.
It is really fun to watch self tapping screws in action. You can get quite a lot of work done in very little time, a satisfying prospect. Juggling two or more pieces of material together and trying to get the screw to hold can be tricky and exasperating. In many ways, simple devices are better than more complicated ones. There are a number of varieties of screw. They have different diameters and different distances between individual threads. They are manufactured from several different types of metal, including copper, nickel, chromium, brass, zinc and steel. Another important difference is in the construction of the screw's head, whether it is flat, round, plain or Phillips headed.
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