We found out that The Gotoh 5010 tremolo (for 10 We found out that The Gotoh 5010 tremolo (for 10.8 mm) has two gutters that didn’t exactly match the width of our saddle screws. We adjusted the width to match the width of the Gutters. Our outer two saddles in the package fit the Gotoh gutters exactly (the screws are a small bit wider apart than the four screws in the middle of the package). If you don’t have a Gotoh tremolo There will be no problem. This guidance is just in case you have a Gotoh 5010 tremolo.. Best of luck and have fun! Highwood Guitarparts Gutter for screws