DIN 471 External Retaining Ring 20 mm (Pack of 100 pcs) Stainless Steel
Their hardness ranges from HRC 42 to 52, and they have a plain finish. 7 mm 12 mm 17 mm 22 mm 28 mm 35 mm 42 mm 55 mm 70 mm. 6 mm 11 mm 16 mm 21 mm 27 mm 34 mm 40 mm 52 mm 65 mm. 4 mm 9 mm 14 mm 19 mm 25 mm 30 mm 38 mm 48 mm 60 mm.