Any stainless steel screws manufacturer advertises that they only provide quality items but most of us do not know the process followed to ensure this quality. Screws are thread fasteners that any of us have used on a variety of occasions. They are use right from the furniture in the room to automotive parts and even in the space shuttles. These screws have grooves on the outside that may run as left or right-handed spirals on the body of the screw. Some may even have straight, parallel, or tapered grooves as per the requirement.
The history of screws
While the first screws were use as early as 200 BC. The modern metal version of these screws was develop during the Renaissance period. These screws were handmade and differed ever so slightly while being time-consuming to be make for mass production. The first patent for a screw cutting machine was fill in 1760 which could make around ten screws a minute. The die-cutting process now has been replace by a thread-rolling mechanism. Innovations to the process now allow any stainless steel screws manufacturer. Mass-produce thousands of screws while saving major time and investments spent earlier.
Choosing the raw materials
The biggest factor that defines the quality of a screw offered by a stainless steel screws manufacturer is the choice of raw materials. Most of the modern-day screws are make of either low or medium carbon steel wires. But other manufacturers also use a host of inexpensive metal substitutes for a variety of applications. Stainless steel, nickel alloys, brass, and various kinds of aluminum alloys are often use to make these screws. Zinc plating is often do for extra protection. Choosing the right raw material ensures that the final product does not crack under pressure or torque.
Design of the screws
As mentioned earlier, any industrial nuts manufacturer provides these screws for a variety of applications right from household to even space-going vehicles. The design of the screw defines its usage for a particular function. The single thread screw has the lead and the pitch identical while the lead is double the pitch for a double-threaded screw, and thrice for a triple thread. The pitch refers to the distance between the grooves and is more commonly call the number of threads in an inch of space or centimeter on the screw. The lead is the distance that the screw travels with each revolution.
The manufacturing process
While any screws offered by the stainless steel screws manufacturer and industrial nuts manufacturer are created by different kinds of machines. The manufacturing process follows a certain pattern for them all. Most mass-produced screws are created by the thread rolling method that has two basic steps. The first step is called cold heading where the wire is straightened and cut into the desired length and the head is created.
The next step is thread rolling where the grooves to each screw are added by rolling it against stationary dies.They are use right from the furniture in the room to automotive parts and even in the space shuttles.