Thank you for viewing. I used these on a 4-lug vehicle, so there are 4 unused. I did not use an electric/air impact wrench for removal/installation. I used these for 3 years, so there are no major scratches, but please judge from the images and purchase if you understand that these are used items. - Model: RS NUT - Size: 21HEX 34mm - Thread Size: M12×P1.25 - Included: Socket - Color: Black - Quantity: Set of 20 Thank you.