supply of items required for modification in the door lock arrangement etcitems required for modification in the door lock arrangement etc,ss safety catch as per rcf drawing no. lr51122 used at saloon sliding door of lwfac coach es modified locking arrangement [ warranty period: 30 months after the date of delivery ] , ss tower bolt as per as per is 15833:2009 used for saloon sliding door of lwfac coaches [ wa rranty period: 30 months after the date of delivery ] , ss socket of tower bolt as per rcf drawing no. la56144 [ warranty period: 30 months after th e date of delivery ] , csk head self tapping screw (m6*20mm) [ warranty period: 30 months after the date of deliver y ] , ss chorbet rivets (5*20mm) (multi-grip) [ warranty period: 30 months after the date of delivery ] , ss locking sheet (2mm*140mm*140mm) as per rcf drawing no. la56171 used at saloon slidi ng door of lwfac coaches modified locking arrangement [ warranty period: 30 months after the date of deliv ery ] , ss grommet (t=1.5mm) as per rcf drawing no. la56173 used at saloon sliding door of lwfac coaches modified locking arrangement [ warranty period: 30 months after the date of delivery ] , ss angle (4*40*40, l=200mm) as per rcf drawing no. la56172 used at saloon sliding door of l wfac coaches modified locking arrangement [ warranty period: 30 months after the date of delivery ]