CUB Cadet 50"deck Spindle Repair Ring Fits Cub Cadet, Troy-Bilt, and MTD Mower decks. It is made from 3/16 ASTM A572 Grade 50 material. This is a high tensile strength material commomly used in automotive applications. These are made right here in the USA. These are not cheap imports or crudely made in someone garage. Fits the following brands of mowers with a four bolt spindle pattern: MTD Cub-Cadet Troy Built OEM design issues allow for the the deck to split/break where the blade spindles bolt to the deck. The reinforcement ring adds additional material to prevent this failure. Powder painted black with an 11-stage pretreatment process this hitch will pass the same quality specifications of the underbody of your car. Our goal is for the reinforcement plate to outlast your mower! We are also including four zinc plated Hex Head Serrated Flange bolts