What are Bolts and Nuts?
Bolt is cylindrical piece of metal that fasten objects together. It is a piece of steel forged at one end to make hexagonal, square or round head and the stem fully or partially threaded at the other end. Nut is a hexagonal or square piece with a threaded hole at the center. Bolts and nuts can be zinc or cadmium plating to resist corrosion. Although a bolt has a head that is in general practice usually hexagonal, its head can be designed to have heads such as round, counter sink head square neck, oval, elliptic etc. Bolts are of various types such as tap, coupling, eye, lifting, square head, carriage, Uclosed anchor ring eye-ball. When used with a nut, a bolt forms a commonest and fastest way of having two or more parts joined temporarily or permanently. The nut, on the other hand, forms part of the screwed pair. It has an internal thread and because it act as a fastening in machine construction, is fixed. The nut then moves axially as it is rotated. Just as the bolts, there are different types of nuts. These include the square, wing, slotted ring, cap, hexagonal, castle, wing, flanged and knurled. Bolts and Nuts are used extensively in all industries either during manufacturing or maintenance of engineering products. They are universal industrial fasteners and their demand is expected to increase with the development of the manufacturing, maintenance and construction sector.
Market for Bolts and Nuts:
With the present pace of industrial development, there is a rising demand for bolts and nuts in the furniture making outfits, bed manufacturing, metal fabrication, motor vehicle and other automotive industrial sub-sectors, etc. The manufacturing and the construction sector has been growing by more than 7% in the past few years while the service sector by more than 12%. Considering these factors demand for bolts and nuts is forecasted by applying an 8% annual growth rate. Although bolts and nuts are manufactured by few of the existing metal industries, the bulk of the demand is met by imports.
Manufacturing Process Description:
Bolts and Nuts are made up of automatic double-stroke cold heading machine, automatic horizontal slotting machine, automatic bold pointing machine, automatic nut-forming machine, automatic bold head trimming machine, automatic thread rolling machine, automatic heat treatment machine, automatic nut tapping machine, tumbling machine, and other accessories. The major raw materials needed by this industry are steel rods and pickling chemicals which are readily available in the local market.
The manufacturing of bolt process will be started by removing the rust formation using mechanical scraper. Then the wire coil is pickled in pickling tanks. The mild steel rods are fed in the header machine. Trimming of formed head and stem reduction take place on trimming machine. Then the blanks are loaded to the automatic thread rolling machine for threading to the required length and size. The bolts are further put into barrel and get polished. If required, they are plated for corrosion. Nuts are also manufactured in a similar fashion like bolts. Rust removing and pickling process will take place. Then drilling and cutting of blanks from hexagonal bars is performed on nut cutting machine. The blanks are put on the tapping machine and threaded through polishes and plated if required. Finally after inspection, it will be weighed and packed.
Castle Hill Storage
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What Do The Storage Houses Actually Do?
Most of these service providers provide both short and long term storing options with offerings spanning across domestic and business storage, vehicle and climate controlled wine storage, records management, other services, including but not limited to packaging, transporting, insurance, trailer hires. These storing houses are highly secured with 24 hour CCTV surveillance along with PIN security controlled gates. Some of these service providers has mobile apps, which helps the customer in managing their account easily. They provide tailor made solution that meets the needs and also fits the budget of the customer, so that the customer pays only for the required space. They also provide a range of transporting supplies and services which helps in moving properties easily. All packing needs of a customer, whether it can be an interstate or overseas movement, decluttering the home before selling or storing the belongings temporarily in between switching homes, these packers will help you not to lose your calm during those difficult times.
Customers in Castle Hill looking to store their belongings, should do due diligence of the storage service providers, verify their past success stories, customer complaints if any, customer feedbacks, and pan Australian presence before choosing the service provider. Customers should avoid falling for glossy advertisements, discount traps and also consider the reputation of the service provider.
Fasteners – their Usage and Types:
Fasteners are one of the commonly used and widely available components to create temporary joints, a joint which can be removed or dismantled without destructing or damaging the joining components. They are used across all spheres of our daily life, i.e right from our regular household appliances to modern gadgets, and heavy machineries too. They are of many different like common stapler, nuts, bolts, nails, or screws. Most of the fasteners available in the market are designed for a specific application and so they must be used appropriately.
Some of the commonly used male fasteners in the industry are hex head, slotted head, flat (or countersunk) head, round head, socket head, button head and socket set screw, whereas the female fasteners are regular hexagonal nuts and nylon ring elastic stop nuts (lock nuts).It is highly critical to have good knowledge about the correct usage of fasteners, especially when in use for harsher conditions. If the connecting points are of acidic in nature or usage temperature is moisture in nature or frequent chemical changes, then it becomes more significant to choose the right fastener for such situations. The methods for applying the fasteners must be tailored and designed to exceed the maximum possible abuses it can face in due course of protecting the object it has been fixed to.
Fasteners, especially like bolts and nuts are manufactured by traditional processes like forging and machining methodology. In order to manufacture nuts, a steel rod is fed to an automatic nut forging machine. Then the semi-finished nuts are passed through tapping machine to form the internal thread, which is followed by normalizing process to release the internal stress formed in the nuts. Similarly in making bolts, the steel rod is passed to the double stroke cold header machine followed by the machining of the bolt head to any shape desired for the bolt by using the bolt head trimmer.
Most of the commonly used fasteners are made from Carbon Steel, Alloy Steel, Stainless Steel, Titanium, and Aluminum. Fasteners made by different materials has different .For eg. Fasteners made by Aluminum is used to bear lighter loads, whereas the ones made by Titanium is used by aircraft manufacturers. Sometimes they are provided special coating by Cadmium, Zinc, Phosphate, Chromium, Silver, Black Oxidizing and Nickel to improve their performance.
Evolution of Fasteners
Going beyond the conventional methods, these days hybrid fasteners are widely used. They are manufactured by unconventional materials, combination of metal and injection molded plastic elements. Advantage of this technique is, it is less expensive, lighter in weight, easier to manipulate and install, than traditional mechanical fasteners. Since plastic is being used, so they also encourage color-coding, which can be used for identification purposes, parts matching or cosmetics too. Most of the recent innovations in fastening technology is due to the modern marketplace requirements for smaller and light packages, quicker and cost effective manner. The category of fasteners has expanded to specific functional performance. The best way to take full advantage of current and future fastening technology is for product designers to take supplier’s support at the component design level, as it can help in better research and launch better quality of fasteners in the market.