QTY: 10pcs wheel studs in a package Reference part numbers: 610-156; 610156 Head Diameter: .594 In. Knurl Diameter (In): 0.557 In. Shoulder Length (In): In. Thread Diameter: 7/16 Threads Per Inch: 20 Under Head Length: 1.7 In. Thread Size: 7/16-20 Thread Length (In): 1.3 In. Thread Handling: Right Hand Thread Class 12.9 wheel studs; Comes with 1 year w-arranty. Fits for Some elder models Dodge Oldsmobile CHRYSLER GM Plymouth cars , please check your stock stud sizes before you buying. If you need 7/16"-20 lug nuts, please find ASIN# B0GJRFGL65 in my store, it is chrome open-end lug nuts. Reference part numbers: 610-156; 610156 QTY: 10pcs wheel studs in a package Class 12.9 wheel studs, 7/16-20 thread -0.557 In. Knurl, 1.71 In. Length under head Fits for Some elder models Dodge Oldsmobile CHRYSLER GM Plymouth cars , please check your stock stud sizes before you buying. comes with 1 year w-arranty If you need 7/16"-20 lug nuts, please find ASIN# B0GJRFGL65 in my store, it is chrome open-end lug nuts.