The Star Mfg SI4-Z15484 Range Knob Assembly W/ Set Screw 1/4" D-Stem Flat Down is a control knob used in select commercial cooking equipment. It attaches to the control shaft and allows operators to adjust temperature or equipment settings during operation. Featuring a 1/4-inch D-stem flat down configuration and set screw design, this knob provides secure attachment and smooth control... https://partsfe.com/si4-z15484-star-mfg-knob-assembly