START SLIDESHOWSTOP SLIDESHOW Material Chrome Steel Features Designed for all C.B. radios, external mounted C. B. speakers, mobile scanners & radar detectors currently present in retail markets Unit & Package Sold by pair, carded for display Part No. Description 91170 4mm screw knob 91171 5mm screw knob 91172 6mm screw knob Part No. & Image Selection Universal C.B. Screw Knob Part No.: -- Please Select -- 91170 91171 91172 Combination of product variants is not available Related Products Sitting Lady Accents Plain 2-Hole License Plate Frames with Center Raised Heavy Duty 18″ Steering Wheel Covers in Deluxe+ Series Universal Front Hub Caps with Iron Cross Gear Chrome Plastic 33mm Lug Nut Cover Universal Front Hub Cap in Standard Shape