Set of 10 Shear Pins& Nuts for Ariens: 510015, 51001500. for Snapper -3865, 709155. Set of 10 shear pins and 10 lock nuts compatible. Thread size: 2-/8" X 5/16". The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.