... 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 ... 7/8'' 0.2733F5108 5/8'' 0.115Note: the above indication is from Ningbo For-Global Intl. Trade Co., Ltd. which ...