Both DIN985 and DIN982 are standards for nylon lock nuts. Generally speaking, Nylon Lock Nut DIN982 is a bit thicker than DIN985, and the opposite side is a bit wider. Naturally, the price is more expensive. Therefore, DIN985 is better than DIN982 nylon lock nuts. Ningbo WellDone Metal Mfg., Ltd.produce quality Nylon Lock Nut DIN982 for customers all over the world!