Metric E Clips are produced to DIN 6799 standards and make up the D1500 series of Circlips.
They have the advantage of being inserted from the shaft rather than the front.
Metric E Clips are always listed by the groove size on the shaft. For example a 6mm E Clip will suit a 6mm groove.
Carbon steel and Stainless steel available to purchase online. Simply follow this link to browse the range – https://springfasteners.co.uk/product-category/e-clips/