This sale is for (4) new old stock, never been used 1" X 8 Tpi. coarse LEFT hand thread half thickness or jam nuts.These are a super quality nut probably 40 years old and made in USA. Again, you are purchasing 4 nuts. Please see pictures and ask questions if you have them. We describe our items as accurately as possible. We do not know everything, so look at the photos as well as reading description completely. I will ship internationally and will combine shipping on multiple purchases.