In the modern era, the screws are an item that is required in various places and especially in the manufacturing units and in infrastructure works. These accessories are heavily used for construction of building, bridges, railways, in the aviation sector and also in other places.
The various features of these items like strength and durability have made them very popular and an accessory that is irreplaceable by any other. There are various types of screws that are used nowadays and they differ in the material by which are made and also in terms of dimensions, number of threads, the type of head and the purpose for which they are going to be used.
Of the various types of fasteners that are there, the most popular ones are those that are made of steel and especially stainless steel. The ones that are made of steel are mainly used indoors or in places where the chances of being exposed to sunlight or rain is very less; whereas the stainless steel made ones can be used in any place because they are resistant to corrosion and are still a very economical option. The anti-corrosion or anti rusting property is achieved because of the presence of a metal named Chromium. This element constitutes about 12% of the whole material and it makes these fasteners suitable for places that are frequented by rain and heat. The addition of the metal also makes the screws highly durable and they can also endure heavy weights. Other types of elements are also added to make fasteners and they are namely carbon, nitrogen and nickel. At times a combination of nickel and manganese is also used and in that way it reduces the cost of production to a great extent and makes the steel screw highly affordable.
The screws can also be classified according to the type of purpose they serve and in case of masonry works, the items that are used are known as cement fasteners. These accessories work fairly well with bricks, blocks, cements and mortar joints but all concrete fasteners wouldna€?t work well in all applications and thus proper care should be taken to make sure that the right one is chosen. While choosing a concrete screw one is required to consider a few things like the diameter of the fastener which is generally about 3/16a€? and ?a€?, the length, the hole depth, diameter of the hole and the material with which it is made. The cement screws are made of two materials namely carbon plated steel and stainless steel, with the former one being used in indoor applications and the later variant in outdoor purposes. By choosing the right variant and using it properly you are sure to get a job done in the best possible way and that would also last a lifetime. There are also certain types of fasteners that have got a trim type head. These items are considered to be one of the best kept secrets by the professionals of the industry and they have fine threads and the head is about 30% smaller than that of normal flatheads.
