Mulching blade for walk-behind 22" lawn mowers. Use with a mulch cover for more finley cut grass
Nut-Locking. The manufacturer has changed vendors and the part may vary in character. Some do not have a nylon insert, however the nut is a locking type.
Lawn mower blade adapter. If the lawn mower's blade isn't engaging properly, the blade adapter may be stripped. If the blade adapter is stripped, replace it. 1 inch ID.