Brand: Herschel Parts Fits John Deere NU 400/500 Metric. 18'. Replaces A 42808. 3 bolts required. Bolt sizes required:(3) M16 x M35. 3/8″ Thick. Heat-Treated. Painted Black Finish. Made of 1080 High Carbon Steel. Hardware Not Included. Sold in cartons of 6 only.