Stem Bolt (for saddle)

Ben Willett in Louisville, Kentucky has just got himself a bargain of a bike from e-bay. His only problem is that he needs a seat clamping bolt and wants some pointers as where he could find one, this is what we think:

Question:
I just bought a bike off of eBay and will need a bolt for my seat. This bike is an ’86 SCHWINN WORLD (TAIWAN) and all I need is the bolt, as the clamp is built into the frame. It is two-pieces and uses a 4-mm hex (allen) wrench on both heads. Any ideas where I could pick up one of these? I could put a high-quality bolt from the hardware store but hate to substitute on these things–like to keep original.
Thanks!!
“Ben”

Campag Seat Binder Bolt

Hi Ben.

Sounds like you got a fine bike there, you can get some good bargains on e-bay, but you need to be careful and check things out first. The bolt that you refer to should be easy to find as all bikes used to have this bolt to hold the seat pin in place in the frame, these days things are a little different with extended seat tubes and aero seat pins and in some cases no seat pin just a clamp system.

The bolt you are looking for is a two piece frame fitting Allen key seat pin binder bolt and there is a choice of prices and quality from steel to alloy and from Taiwan made to the top Italian Campagnolo versions, but they all do the same thing; they stop the seat pin sliding down inside the seat tube.

Check out Performance Bike who have them or try your local bike shop which should have a cheap replacement or maybe even the Campagnolo bolt.