Definition of grub screw in English:

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grub screw

Entry from British & World English dictionary


A small headless screw, used typically to attach a handle or cam to a spindle.
Example sentences
  • On a cross-top tap, beneath the plastic hot and cold discs is the grub screw (a small, headless, larvae-like screw), which holds on the head of the tap.
  • A grub screw from the rear drive shaft collar worked its way out, and even though I got a replacement from my local hobby shop, it still hangs loose, so I suspect something is loose inside.
  • Similarly, there seems to be no way of adjusting the reel to cope with wear on the spindle end-bearing: on other plain bearing reels a small grub screw on the front of the spool is used to adjust the reel.
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