Use :

Road, mountain bike, city bike, old bike.

Model 1 : M5x19,5

Thread M5.
Total length : 19.5 mm.
Length under head : 10.4 mm.
Outer diameter: 8 mm.
Max. hole diameter : 5.2 mm.

Model 2 : M5x21

Thread M5.
Total length : 21 mm.
Length under head : 12 mm.
Outer diameter: 8 mm.
Max. hole diameter : 5.2 mm.

Model 3 : M5x24

Thread M5.
Total length : 24 mm.
Length under head : 15 mm.
Outer diameter: 8 mm.
Max. hole diameter : 5.2 mm.

Material :