I lost my '92 Schwinn Crosscut binder bolt years ago, when I took the saddle out for transport and the binder bolt subsequently vibrated off during the trip. The replacements I've tried have all been mediocre, at best. The last one (pictured) required a ton of snugging to keep my seat post secured in the seat tube.

Any suggestions for an efficient quick release binder bolt are appreciated.
Or...am I relegated to using a hex head non-quick release style?

Thanks!

I have a bike with a Suntour quick release seat post binder, and it's very nice, but it's apparently not cheap on its own. I see a handful on ebay for between $30-50.

This worked out good. The Bontreger quick release seat post binder is an external cam. The aluminum cam rubs against the plastic as you can see when you move the lever to the closed position. The SunTour is an interal cam. like Tulio Campangno first dreamed up. This has all steel parts and there is less friction when closing the lever. Or at least that is my opinion of these two designs.

Your opinion is correct, based on my experience.

Lots of affordable internal cam options out there for cheap. Like this one:
https://www.ebay.com/itm/QUICK-RELEA...7/391247138183

ebay has some kalloy internal cam quick release options. look for the vintage ones. one is up for $13

https://www.ebay.com/sch/i.html?_fro...clamp&_sacat=0

https://www.ebay.com/itm/VTG-Kalloy-...oAAOSwNalfHogF

i have one on my '93 mongoose crossway. works great!

Great replies...thanks a ton!

A hex key and a normal bolt probably weigh less, and the key probably fits other bits and is easy to carry (in the patch kit).

And you won't come out of the shop to find your seat gone.

Unless you're frequently changing or adjusting the saddle height (I suppose that there is need for that with certain cycling activities), a quick release seat post binder is just an invitation to some low life to abscond with your saddle and seat post! I'm going with oneclick's suggestion of a binder bolt secured using a hex wrench. Much lighter (if that's important), more elegant (personal opinion​​​​​​) and way more time consuming to release the seat post (thieves are lazy)! Determined thieves will have the necessary tools and rely on times when being observed is minimized. Filling the hex head bolt and/or nut with bee's wax will add extra time the theif's job! Again, that just slows determined individuals. So yes, there may be a need to remove the saddle completely to prevent theft. Bring your own hex key/wrench.

I will likely use this method moving forward. I've liked a quick-release in the past because I take the leather saddle and post out during transport. But, ever since losing the original one, the replacements have left much to be desired.

Normal hex head binder bolt, here I come.