Well, making a choice between fully threaded and partially threaded bolts is a little more complicated than simply choosing a bolt that’s the right size for the hole you are working with. The type of bolt you choose needs to suit the application of purpose of the fastener and therefore it’s important to know the difference between the two types.
Further, fully threaded bolts( which is also known as “สลักเกลียวเกลียวอย่างเต็มที่“ in the Thai language) have threads that run the entire length of the bolt whereas partially threaded bolts have an unthreaded area just beneath the head and then has partial threading the rest of the bolt length. The part that is not threaded is known as the grip length. For the most part, fully threaded bolts are used in the automotive industry where the vehicle’s frame is designed with holes specifically for these bolt types.
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On the other hand, partially threaded bolts are used with washers and nuts and are designed typically for use in bolt-through applications. In applications where shear strength is more important than grip strength, the partially threaded bolt is the correct choice. These applications include the likes of water pumps, alternators and motor mounts.
As well, it’s important to choose the right type and size of bolt to suit the application you are working with. In many instances, if you aren’t sure which is best suited, consult with your fastener supplier who can advise you expertly.
No doubt, choosing a right one is daunty task for you but once you understand the all aspects between the two types of bolts, it should be easier for you to decide which one to use for a particular application.
In addition, one of the easiest ways of getting this information is by simply consulting a fastener expert to help you out. If you buy the bolts from a high quality contractor, this should not be very difficult since you have an expertise who will suggest you the right bolt for the application.