2Pack Retainer Bump Knob for Ryobi Homelite Toro John Deere Craftsman MTD McCulloch Trimmer Head 308042002 UP04273 DA98866A JA993030 UP04273A A98866A MC-9228-331011

Bummer, i have a Ryobi c430 gas trimmer and the metal bolt stripped through the plastic from me tightening too much and untightening it over the years. got this on Amazon and fixed it.https://www.amazon.com/dp/B07QVDZZT3?ref=ppx_yo2ov_dt_b_fed_asin_titleSounds like yours does not come off, if like they said you feed 10" at a time. Is yours spinning or won't move at all ?