The Star Mfg SI4-Z15484 Range Knob Assembly W/ Set Screw 1/4" D-Stem Flat Down is designed to provide precise control over burner settings, helping ensure reliable operation in compatible commercial cooking equipment. This replacement knob assembly works by securely attaching to a 1/4" D-stem control shaft with a set screw, allowing users to accurately adjust heat levels for consisten... https://partsfe.ca/si4-z15484-star-mfg-knob-assembly