supply of bolts , bolt hex head 1/2 - 20 x 1-5/8 to emd pt no 181432 and blw pt no. 19014107 [ warranty period: 30 months after the date of delivery ] ] , bolt hex head size-3/8 inch x 16 tpi x 1-1/2 inch long as per blw part no. 19012056 & draw ing no. 179843 [ warranty period: 30 months after the date of delivery ] ] , bolt hex head 3/8 inch-24 tpi x 1-1/2 inch long as per dlw part no.19012135 and blw drg. no. 181374 [ warranty period: 30 months after the date of delivery ] ] , bolt hex head 1/2 inch -20 tpi x 2-1/2 inch - elbow to water pump as per blw pt. no. 19014 144 and emd pt.no.181440 alt nil or latest [ warranty period: 30 months after the date of delivery ] ]