Description:1.Single Linear, Suits Most Standard Knobs.(this item do not include Knobs)2.Top adjustment type and knurled shaft for easy operate in daily use.3. Mainly used for dimming, speed , temperature , etc. of electronic products, suitable for , audio and video, governor, microwave oven, loudspeaker, Amplifier, etc.4. Knurled shaft with split design for push-on knob. Specification:Product Name:carbon Film PotentiometerModel: WH148Material: bon film MetalResistance Value: 50K ohmTolerance: +/-10%Turn Number: Single TurnTerminals Number: 5Features: Round ShaftTotal High: 30mmBase Size: 17mm x 9mm ( D x H)Screw Thread Dia.: 6.7mmShaft Diameter: 6mm/0.24 inchShaft Length(do not include the Screw Thread parts): 9mm Package Content: 5 x carbon Film Potentiometer