supply of set of tee head bolt m10x30 with spring washer & hex nutset of tee head bolt m10x30 with spring washer & hex nut,set of tee head bolt m10x30 with spring washer & hex nut for dirt collector of air brake wagons as following- (i) tee head bolt m10x30 to rdso drg. no. wd-92051-s-05, alt. no. 05, item no.8 (ii) spring washer & hex nut to rdso drg. no. wd-920 51-s-03, alt. no. 4, item no. 8 & 9. (each set consisting 04 nos. bolts with spring washers & hex nut) . [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]