Wooden frame mating bolts -- ? -> for reinforcing

[Truefire]

Could someone please tell me what the bolts are called which are used in recessed pockets to reinforce mitered cuts on large wooden frames? They are essentially a 1/4" hex head bolt which goes through two pieces of flats (one on each side of the miter) with nut attached. They sit down in recessed pockets, down into the wooden member. I've seen them a million times but do not know how to locate them.

Thanks

 

[Jeff]

I've never heard of such a gizmo. There are wooden splines, etc but this one is a mystery.

are used in recessed pockets to reinforce mitered cuts on large wooden frames?

Found a couple of leads: Flip bolts and miter bolts.

http://www.devoswoodworking.com/designing-wood-countertops/joints.html

https://www.youtube.com/watch?v=K3uRFzbv8KM

 

[DaveD]

Do a search for counter top draw bolts.

 

[Phil S]

Do a search for counter top draw bolts.

And some folks call them countertop dog bones

 

[Skymaster]

Woof Woof

 

[CrealBilly]

Do a search for counter top draw bolts.

I think that's it

 

[Joe Scharle]

Look at Zipbolts from Lee Valley.

 

[Truefire]

You all are the greatest--very helpful. Thanks. :icon_thum