Carriage Bolt Seat by fizzup 3d model
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Carriage Bolt Seat by fizzup

Carriage Bolt Seat by fizzup

by Thingiverse
Last crawled date: 3 years ago
This is a seat and cap that will hold a 1/4 - 20 carriage bolt in place. It has clearance for #6 wood screws and countersunk heads.
If you have a square-hole drill bit of the right size to hold the carriage bolt from spinning then the seat is not required. The cap will work on it's own in this case but you will need to mark the pilot holes for the screws after you drill the square hole. That way you can use the carriage bolt head to guide where the cap should go.
You may not be able to torque up the carriage bolt all that tight if you use the plastic seat. Probably thumb wheels or wing nuts only, I'm afraid.

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