The above are just suggestions. There is flexibility in sizes for each application. Generally speaking, use longer rivets for thicker material and shorter rivets for thinner.
Approximate rivet measurements:
Cap diameter: 6mm (Small)
Stem Length: 6mm
Stem Diameter: 2.4mm
Cap diameter: 8mm, 9mm (Medium)
Stem Length: 6-8mm
Stem Diameter: 2.6mm
Cap diameter: 10mm (Large)
Stem Length: 8-10mm
Stem Diameter: 2.8mm
$5.49
Available in:
6mm* (6mm cap width x 5mm stem height)
6mm EXTRA LONG (6mm cap width x 12mm stem height) - antique brass only. SALES ARE FINAL. Limited availability.
8mm* (8mm cap width x 6mm stem height)
9mm* (9mm cap width x 7mm stem height)
10mm* (10mm cap width x 8mm stem height)
*Rainbow rivets may have a slightly longer stem than other colors.