Monday 15 July 2019

All You Need To Know About Nut, Thread Screws And Bolt


When you are looking for a nut screw or bolt you need to look for them according to your work specifications as you need to go for a complete solution. The factors that need to be taken into consideration is the grip, size, etc. When you have a specific job at hand you need nut, bolt, and screws then you have to make a crucial decision regarding its type as well as quality.

So, let’s first dig into the jam screws, nuts, and it's working. A jam nut is smaller than the normal nuts and is screwed onto the bolt as well as tightened against each other. Jam nuts are used when you are dealing with soft material.

While moving towards fastener, it is a word used for both screw and bolt. But if both are called fastener then what is the difference between the two? If this question arises in your mind. Then, here have a look at the difference between the two:

Bolt is a threaded fastener having a head on one side while the screw is like a bolt having a head on one end and another side has a helical thread to pierce through surfaces.

 Fastener thread:

Thread is a ridge that rapped with the screw, both and other various types of fasteners. These threads can be parallel or straight and have further types.


  • Constant-Pitch: These types of threads are available in various diameters to meet the requirements of a particular application.


  • Unified National Fine: These threads have high torque-locking and load-carrying capabilities due to the large diameter and tighter tolerances


  • Unified National Coarse: It is used for general fastening jobs having a deep and generic fit for easy removal.


  • UNJC/UNJF: These have a big root radius, larger tensile strength, and less stress concentration.


  • Unified National Extra Fine (UNEF): It is the best thread among all and is perfect for applications that deal with hard material.


  • UNR/UNK: A UNR thread has a rounded root radius.

Full threaded or partially threaded which is best to use?

Screws and bolts have various varieties like jam screws and concrete screws have an umbrella name called fastener and they are tied with the threads. Partial thread bolts, as well as screws, have no threading. These are best when you require resistance and alignment.

While full threaded bolts and screws have no grip length and it provides an excellent grip strength. These screws are used in the automobile industry to design vehicle frames.
Difference between full and partially threaded bolts and screws:

The key difference between the two is that full fasteners have threads while partial fasteners have some unread section. Both types of fastener have it's unique identity and is ideal for various application.

While choosing the right type of fastener you should you should be aware of the application where these fasteners are used. The partial fastener is used in mounts and other automotive fastenings. The precision of partial fastener is vital and deliver the alignment that is required.

The full fastener is used where vast strength is required like body panels etc. as the fully threaded bolt's holding force extends over the complete shaft section.

So look for the metric socket set screws, bolts, nuts that are required and is the best solution for your work. You can buy these at a very effective price from Cam Tech Industries. You just need to know what size and type of screw are required.

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