$0.02
See if it's really the one
Search with this product to compare it, find similar styles, or turn up something better before deciding.
3/8" Inside Diameter, fits 5/16" and 3/8" Bolts. These are not actually copper. They just turned this color when we sent them for black oxide treatment. We can't return them so maybe you can use them!
Have a question about this?
We currently ship within the US, with more countries coming soon.
Final cost and dates are confirmed at checkout.
🇺🇸 Ship from USA · On Agora since 2025
$0.02