Eyelet No.
Stem Diameter
Head Diameter
Stem Length under Head
#2
5/32”
5/16”
#1
11/64”
11/32”
AA
3/16”
3/8”
AA Long
15/64”
00
¼”
15/32”
00 Long
Skate
5/16"
Skate Long
Hexagonal
7/32”
7/16”