Description: 10 Sets Hex Threaded Bushing & Ferrules & Mount Screws for Ukulele Tuning Peg Tuner Machine Heads Suit for ukulele Material: Iron, alloy Color: Chrome Size Chart: Screw Thread diameter: Approx. 2.5mm/ 0.098inch Screw Length: Approx. 9mm-11mm/ 0.35-0.43inch Bushing inner diameter: Approx. 8mm/ 0.31inch Package Includes: 10 Pieces Hex Threaded Bushing 10 Pieces Ferrules 10 Pieces Mounting Screw