Innovative Components AN4C-5S3L-21 1.75" Star Knob thru hole&nbsp; 1/4-20 steel zinc lock nut black pp (Pack of 10) Popular choice with smooth lines and finger grip spacing for easy turning Contemporary Satin Textured Finish ,Scratch and Dirt resistant Won't crack, become brittle or discolor AN4C-5S3L-21 MOLDED WITH NYLON INSERT LOCKNUT. VIBRATION RESISTANT. REQUIRES ADDITIONAL HAND TORQUE TO INSTALL MATING FASTENER THRU THE KNOB. IF YOU WANT A FREE SPINNING , NON LOCKING KNOB OF THIS STYLE AND SIZE ,PLEASE PURCHASE AMAZON PART NUMBER:B00GORXQNG