150 pcs) M8, DIN 471, Metric, External Retaining Rings, Stainless Spring Steel: Amazon.com: Industrial & Scientific
Standard External Retaining Ring, Tapered Section, Axial Assembly, SAE 1060-1090 Carbon Steel, Phosphate and Oil Finish, Meets DIN 471 Specifications, 55mm Shaft Diameter, 0.60mm Thick, Made in US (Pack of 100): Amazon.com: