What are Thumb Screws and where are they Used rfq


A screw drive that comes with either a tall headed or ridged (knurled) sides, or a key-like flat sided vertical head can be defined as a thumb screw. These screws can easily be tightened or loosened by hand without using any external drive. However, they are not ideally used for any structural applications.


The over-sized head with the diamond-patterned grip finish allows the screw to be tightened or loosened without any external effort. This easy feature makes the screw an imperative part of those devices that require frequent removal and re-installation; for example, safety covers of electronic devices..


What are the Basic Applications and Advantages?

A thumb screw actually acts like a bolt in most applications. When typically used, this blunt-nosed screw or bolt is fastened into a threaded hole and its ease of removal doesn’t require any external tool to assemble or disassemble any equipment.


Besides safety covers for electronic gadgets, thumbscrews are also used in battery covers on many small electronic devices.A big advantage of the thumbscrew is that it does not fall out of the cover when the screw or bolt is loosened. This is because it uses a washer that is set in place to retain the screw in the cover. This feature does not allow the screw to fall off and get lost in the ground.


Certain screw designs come with a Philips screwdriver slot on the fastener head. This gives an option for the fastener to be tightened using a wrench and not simply by hand. These kinds of thumbscrews that come with a Philips screwdriver slots are widely used in high vibration applications like off-road vehicles and boats. In this case, they are not able to get loosened over time, or due to over usage or impact. On the other hand, knurled headed fasteners can be tightened using a pair of pliers that ensure an efficient torque.


Other Usages


Several industrial machineries use thumbscrews as fasteners on machine covers, safety guards and other components that require frequent removal and reinstallation. In many cases, this feature of thumbscrews aid in immediate maintenance and replacements of faulty tools.This also prevents the fasteners from breaking or stripping, and allows the engineers to take least amount of downtime to fix any problem within the system. On a larger note, the ease of using thumbscrews saves time, effort, and materials while working with certain devices. Ultimately, this aids in increased productivity.