Self-Locking Spring Inserted Steel Nut Single Piece Reusable Of Size M-27 For 28 Mm Dia. Hook Bolt As Per R Dso Spec. No. 1773549/2023/O/O Ed/Bns/Rdso. Including 01 No. Appropriate Box Wrench /50 Nos. Nuts. Spec. Details: L N- 37.5 Mm, Sn- 41.0 Mm, Hn- 22.0 Mm, Bn- 41.0 Mm, Cn- 47.3 Mm. Plating- Electro-Galvanized Or Hot-Dip Galvanized Or Nickel Alloy. Make- Saper Lock Or Similar. ]