Fittment: Geo, Metro ,Tracker 1989-On Lexus, Celica, Corolla , Previa 1990-On

part number: GM: 30006620  Toyota: 67771-12050, 67771-28020

Size:

Top Head Diameter: 13 mm (1/2 inches)
Middle Head Diameter: 16 mm (5/8 inches)
Bottom Head Diameter: 18 mm (23/32 inches)
Stem Diameter: 9.5 mm (3/8 inches)
Stem Length: 14 mm (9/16 inches)
Overall Length: 20.5 mm (13/16 inches)

30 pcs one  pack                    please confirm size ,thank you !