Price: $4.95 Item #PG-020: Used for stem and seat pinch bolts, these are offered in two bolt sizes - 6 x 1 and 5 x .8. The 6 x 1 binder is 1/2" in diameter and 1" long and is drilled, tapped, and counterbored for an M6 x 1 sockethead cap screw. The 5 x .8 is 7/16" in diameter x 3/4" long.