... Material: alloy steel Grade: 10.9 or 12.9 Bolt & NutMaterial : Alloy steelBrands : Komatsu, Fiat,Case, John Deere,International,etc. ... or 12.9Series : Hexagonal bolt & nut,Plow bolt & nut,Track chain bolt & nut, Segment bolt & nut,etc. Part or the Bolt & Nut are as follows ... . which is for reference purpose only.Welcome to order our Bolt & Nut and other products. plow ...