Please help with this old metal spike

[jtpittman195]

Hello all. My little one found this on the playground. It's 3-4 inches long. Flat, for all intents and purposes. It is made of some kind of very heavy metal; it's very sturdy. It's been said to be a sickle bar tooth, but the holes in it seem to be a bit different. There are two holes, one elongated and on small and circular. It's a few millimeters thick and very corroded. Thank you so much for your time.

 

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[GhostTown]

Hello all. My little one found this on the playground. It's 3-4 inches long. Flat, for all intents and purposes. It is made of some kind of very heavy metal; it's very sturdy. It's been said to be a sickle bar tooth, but the holes in it seem to be a bit different. There are two holes, one elongated and on small and circular. It's a few millimeters thick and very corroded. Thank you so much for your time.

Looks like a wedge bolt?

Short Wedge Bolt Factory

 

[jtpittman195]

Wonderful! I think you're right. Thank you!

 

[CATFISH]

Those are what holds a concrete form together while pouring concrete.