supply of hex head bolt of size m8x30, property class 10.9, with flat & spring washer for earthing device of ctrb of fiat bogies of lhb coaches.hex head bolt of size m8x30, property class 10.9, with flat & spring washer for earthing device of ctrb of fiat bogies of lhb coaches.,hex head bolt of size m8x30, property class 10.9, with flat & spring washer for earthing d evice of ctrb of fiat bogies of lhb coaches. drawing no. : confirming to rdso drg. no. cg-15070, alt. -1 & icf drg. no. t-0-2-619, alt.-x/12, flat washer 8 mm as per item 14 & spring washer m8 as per ite m 13 of rcf drg. no. lw71231, alt.-e. quantity 01 no. each per set. material & specification: as per de scription/drawing. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] coaching depot stores/src, ser west bengal 7476.00 set divisional gsd tata, ser jharkhand 5074.00 set