What type of wood screw is this?

[Farmarskruv38234]

Hello! I found this wood screw while cleaning a drawer with various screws. The screw has a completely flat head, no slots or cross, so what is this screw intended for? Are you supposed to make the screw's slot yourself?
Grateful for an answer!

 

[Demmpa]

Perhaps some type of security/single-use screw where the "head" breaks off when there is too much resistance/torque.

 

[Rickard.]

Is it just a manufacturing defect, I guess, not entirely uncommon even today.

 

[Farmarskruv38234]

If it's just one, I guess it's a manufacturing defect, not entirely uncommon even today.

There are probably several. The box I cleaned had lots of different types of screws mixed together, surely from the last 50 years.

 

[Farmarskruv38234]

Here I found a similar screw, but here the screw head is different.

 

[Spikbjörn]

Yes, that's often the case. Broken screw.

They missed making the "slot" in the slotted screw. Sometimes these brass screws are quite weak, so the head gets easily damaged. They seem to be more for thin moldings (for decoration nowadays), it seems. If you need sturdy stainless screws, it's real bronze, or A4 stainless steel. Then there are more expensive screws in brass for decorative purposes (like domed ones), or chrome-plated for plumbing.

 

[Oscarklemo]

Here I found a similar screw, but here the screw head is different.

It is a security screw that I learned.

It can only be screwed in one direction.

Edit: I see now that it appears to be able to be screwed in both directions. Otherwise, they are usually beveled on one side of the elevation.

I take it back.

 

[Hybro]

Hej! Hittade denna träskruv då jag städade en låda med olika skruvar. Skruven har en helt plan skalle, inga spår eller kryss, så vad är denna skruv tänkt att vara till? Ska man själv göra skruvens spår?
Tacksam för svar!

Peta och rensa ur skruvskallen.
Ser ut att vara för nån typ av Bits.

 

[fribygg]

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