Fasteners most significant market is the automotive industry 😉 Automotive bolts nuts screws and inserts are generally used for clamping parts of the vehicle together to avoid their separation while transmitting driving loads as well as to prevent leakage of engine and gearbox joints and holding periphery parts to sheet steel 😊 Automotive fasteners come in various shapes, sizes and coatings, colours to meet the demand of the automotive fastening market along with the attractive designs and quality. Over the last decade, multiple companies have been involved in the technological research and development of the automotive fastener and their coatings, which has resulted in superior quality fasteners and the growth of automotive fasteners market. 
While any engineer knows the specifications and torque required in automotive manufacturing, the crucial information regarding tightening is rather scarce. Given the high demands placed on today’s technicians and the competition in the industry, it’s no wonder that the fundamentals of bolts and adequate tightening procedures can be overlooked.Critical problems resulting from loose automotive fastenersIt is necessary to mention that the most common type of fastener used in the car manufacturing industry is the head bolt, followed by the hex-headed cap screw and the stud, the latter being a sort of hybrid between a screw and a bolt. In the eventuality that either of the fasteners comes loose, you will experience problems with your vehicle. For instance, a loose bolt in the engine or transmission area could prevent your car from starting, whereas wobbly fasteners in the suspension or brake system could lead to tragic car accidents. (last revised 90 days ago by Elizabeht Lindsay from Poznan, Poland) 
As stated by the researchers at mckellarmachine.com
, while fasteners are used in a variety of industries, automotive fasteners are among the most common. Occupying an approximate 45 percent total market share, automotive fasteners are vital to the safe operation of vehicles. Although fasteners designed specifically for the automotive industry may occupy a large segment of the market, it is important to recognize that there are actually many different types of automotive fasteners, including bolts, screws, nuts, rivets, studs, and more. Each type of fastener functions in the same basic manner, in order to connect or hold to at least two objects together. The way in which they perform that task may vary. It must also be recognized that automotive fasteners may be constructed of various materials, including iron, stainless steel, nickel, brass, and aluminum. (a big thanks goes to Jackalynn Tinsley from Zhoukou, China for their recommendations). 
When it comes to building cars, there’s more to selecting fasteners than merely finding the correct size and thread pitch. Choosing fasteners that are strong enough for the intended job is crucial – especially when you’re talking about suspension and chassis parts. It’s even more critical on vehicles that will see track time. Hot rodders also tend to be particular about the aesthetics of their projects, so many of the fasteners and retainers we use are expected to offer both function and a pleasing form. That can be a tall order, but it’s one that is commonly met head-on by our aftermarket industry with trick-looking nuts, bolts, clamps, screws, and other retainers. (we say thank you to Laneisha Yi for their response).