Chainsaw Repair

If you are talking about the chain, the rivets are included in what's called "presets" and they are specific to the brand, pitch, and gauge of the chain you have.

You can normally get them at the chainsaw dealer - just have him fix your chain -  or you can find them on the Internet.

They are normally installed with special tools.

The shoulders of the preset rivets are .058" on most Oregon presets. A .050" gauge Oregon chain has the .058" driver links ground down to .050" where they fit in the bar grooves. If you have a .063" gauge Oregon chain, you need to buy specific .063" presets.

All the big Stihl chains are all .063" in the part of the driver links that fit in between the chain plates so all preset shoulders are .063". The Stihl driver links have the part that fits in the bar grooves ground down to .050" or .058" in situations that require that gauge. So basically, with Stihl presets, one size fits all for one pitch like regular 3/8" pitch. The same goes for the .325" pitch chains. All my Stihl .325 pitch chains are .063" gauge.