You are looking at Holden Rear Drum Wheel Studs and Nuts Set to Suit; HQ HJ HX HZ WB Torana LH LX UC 10x Studs 10x Nuts Length 57mm x Thread 7/16" Knurl/Spline is approx 12.2mm Studs will suit Alloy and Steel rims but nuts are for steel rims only Thanks for looking and don't forget to check out all of our Restoration Essentials in our store. Your parcel will have a unique tracking number which will be sent to you via email on dispatch so you can keep an eye on your delivery