Tenders for Supply of Self-Locking Spring Inserted Steel Nut Single Piece Spring Inserted Reusable Seize Nut Of Size Size M-25 Lock Nut M -025For Points & Crossing Specification: Model No.Sp 25 Pitch: 3 Hn:22.0Mm, Bn:38.0Mm, Cn:43.5Mm, Ln:37.0Mm, Sn:38.0. Material: Sts, S45c, Scm, Plating Electro Zinc Plating, Melted Zinc, Nickel, Chrome, Zinc Powder Plating. 1 Tenderer Must Enclose Nas3350 Vibration Test Certificate Along With Tender 2 Authorized Distributor Certificate Must Accompany The Tender. Above Rates Include Box Wrench With Arm Above Rates Include Box Wrench With Arm One Set Required On Every 50 Nuts. Warranty Period: 30 Months After The Date Of Delivery