Conical Contact Washer NF25-511 & SN 70093 (Tooth Series) We are Manufacturing Conical Contact Washer with Tooth according to STD NFE 25-211 & Siemens SN 70093. This washer are conical shaped formed with tooth mounting side and top serrated side. The tooth side and serrated side of the washer exerts circular locking force at the mounting side and the internal face of the bolt head or nut. The tooth mounting side and top serrated side increases locking force and prevent the loosening of bolt during vibration & pressure
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Wagle Estate, Thane, Maharashtra