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The "washer" below is from a carriage bolt. It's like a t-nut, but used on the square side of a carriage bolt and holds it steady. I'd love to get my hands on a box of these but can't for the life of me Google the correct terms. Hopefully someone here will be able to point me in the right direction.

For what it's worth, the "washer" came from an older kids playset that was custom built.

carriage bolt washer

isherwood
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Tim Meers
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3 Answers3

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That is a toothed or pronged "torque washer". As you suspect, it's intended to prevent a carriage bolt from turning in soft wood.

isherwood
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Get these at Menards. Galvanized Torque Washers, 10 in a package.

user90026
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These are also called a "Pronged Washer".

Fred McFred
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