General > General Technical Chat

Very small screws. Replacing or fixing

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Gregg:
For such a shallow saw slot, a fine tooth hacksaw blade can be ground thinner along each side to get the width you want.  This is a good way to use up the still sharp ends of otherwise worn out hacksaw blades.  It will take out any set of the saw teeth which will make the blade stick to the sides of a deep cut; but for a screw head it should be OK.  You can start a very shallow groove with a triangle jeweler's file to guide the hacksaw blade and cut on the pull stroke with the flattened hacksaw blade.

ThunderZed:
My saw blade is new. Can I use a sharpening stone (for knives) to make its teeth thinner? What do you think if I keep my saw firmly and move the screws by my hands, I mean to get a more precise though slower job?

Carel:
It is called a self tapping screw.

BrokenYugo:
Take a small hammer and gently cold work the displaced metal back into a screw head shape, then clean up the slot (or cut one new in your case). Pretty common job if you work on stuff full of custom slotted screws that people like to booger up.

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