This E-clip works with 4 mm shaft diameter, its free inner diameter is 3.8 mm, free outer diameter is 9 mm, and thickness is 0.7 mm. This E-clip is made of 304 Stainless Steel in GB /T 894.1-1986 standard.
Specs:
To Fit Shaft Diameter: 4 mm Inner Diameter (d): 3.8 mm Outer Diameter (dc): 9 mm Thickness (h): 0.7 mm Material: 304 Stainless Steel Material Standard: GB /T 894.1-1986