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Things You Need to Know About Full and Partial Thread Screws and Bolts

February 28, 2020

Screws and bolts are essential in fastening materials. While these hardware devices can hold two or more applications together, there are some factors that you must take into consideration when choosing the best between them. Moreover, screws and bolts are further categorised into two types that bring distinct characteristics and uses. 

Screws and Bolts

A screw has a head and a thread that can dig in and wedge into a material to fasten it with another material. The threat cuts of the screw then groove in the fastened material, which helps pull two materials together. Bolts are closely related to screws as they can also join two materials together. What makes them different is their intended purpose.

Screws have their own thread that can be used in fastening two materials together. They can even cut their own internal thread into the involved materials. Alternatively, bolts are used to make a bolted joint, which is a combination of a nut and the fastener. A bolted joint is created by placing a bolt through a pre-cut hole in the materials. The nut is then twisted and secured in the mating thread at the end of the bolt.

Screws and bolts can either be part of full thread fasteners or partial thread fasteners. 

Full Thread Fasteners

Full thread fasteners do not have any grip length or thread-free portion. The threads of these fasteners run from under the head to the tip. The specific composition of these fasteners makes them suitable for applications that require a strong grip. The ability of full thread fasteners to spread pressure along their entire length makes their grip strong once they are fully mounted. The largest holding pressure of these fasteners is located on their head.

Screws and bolts that are fully threaded are normally used in the automobile industry. The full thread fasteners help distribute the mounting pressure and grip strength of a car’s panels across the entire bolt’s length. 

Partial Thread Fasteners

Partial thread fasteners have a specific area below their head that is free of threading. This part of a partial thread bolt varies in length that will ultimately depend on its application. The overall composition of these fasteners makes them recommended for applications that require great resistance and alignment. What makes the non-threaded fasteners strong is the fact that their non-threaded segment contains zero weak spots. So, if you want to forcefully hold an object in place, then partial thread fasteners are the best option for you. 

Partial thread screws and bolts are ideal for extreme holding force, shear resistance, and precise alignment. Some products that require additional strength, shear resistance, and others include motor mounts, water pumps, and alternators. 

Knowing the difference between full and partial thread screws and bolts can help you choose the right fastener for you. If you are looking for some specific fasteners, then visit us at EBolts Online Store now. We can provide you any fasteners and other hardware devices that you might need for your next project.

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TCI Fasteners - Topcope
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Telephone: (03) 9336 0155

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