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Grub screw

Small but mighty: grubs screws are integral bits of hardware. They help hold things like furniture and machines together. They are small, but they ensure so much is kept in check. So, let us understand what exactly grub screws are and how they function. 


Grub screw — a screw without a head, like most screws. Rather than having a flat or round top, it has a specific shape Screw known as a hexagonal socket. That means you can apply tension with either a hex key or a wrench to tighten or loosen it. This design works well on surfaces where a standard screw head would interfere, or where you want a clean appearance.

The importance of using the correct size grub screw.

Grub screws function by inserting into an internally threaded hole. They load against something else, like a rod or shaft, when you tighten them. That holds the two objects together and prevents them from flying apart. The Hex Socket on the grub screw allows easy adjustment without the need for additional tools, making it suitable for a variety of tasks. 


A grub screw can sometimes get stuck if it was fitted too much, or it could have been placed for a very long time. To remove a seized grub screw, a common method is to use a hex key or wrench and rotate it left (anti-clockwise). If that fails, add some oil onto the screw to loosen it.

Why choose Quanyuan Grub screw?

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