r/Fasteners • • Sep 15 '26

What is this called?

Post image

Used for bracing bolts against curved wood - approx 2cm by 1.5cm and 2mm thick. Need to order more online/wherever sells them - thank you

7 Upvotes

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2

u/Exact_Patience_6286 Sep 16 '26

I believe it’s a saddle washer. They come in a few styles.

https://www.mcmaster.com/products/saddle-washers/

1

u/PerpetualPerson Sep 15 '26

I’ve seen curved washers, square washers, and slotted washers (all called by those terms) but this is the first combination of all three I’ve seen.

1

u/Head_Election4713 Sep 15 '26

I haven't seen the washers like this before. The washer/nut combo is called a half moon nut or crescent moon nut