supply of hex hd screwhex hd screw,hex hd screw m 30x90 for semi permanent coupler(schaku coupler) to rdso ref. drg no.40-588-07(2) p t.11 or sanrok drg.no.din 561 or escorts drg no.din 561 as per rdso specn. no.- 61-b-36/rev.-68-1, with amnd. sli p no.- 1 of october-2016. warranty : as per irs condition, 30 months from date of delivery. [ warranty period: 30 mo nths after the date of delivery ] ] , nylock nut m10 for semi permanent coupler(schaku coupler) to rdso ref. drg no.40-317-13(2) pt.7 or sanrok drg.no.din 985 or escorts drg no.din 985 as per rdso specn. no.- 61-b-36/rev.-68-1, with amnd. slip no.- 1 of october-2016. warranty : as per irs condition, 30 months from date of delivery. [ warranty period: 30 months af ter the date of delivery ] ] , spring ring dia 104 for semi permanent coupler(schaku coupler) to rdso ref. drg no.40-1000.10-4(4) or sanrok drg.no.2ed-181-1251 or escorts drg no.din 70951 as per rdso specn. no.- 61-b-36/rev.-68-1, with amnd. slip no.- 1 of october-2016. warranty : as per irs condition, 30 months from date of delivery.0 [ warranty period: 30 months after the date of delivery ] ] , bolt 22h 11x65x58.5 for semi permanent coupler(schaku coupler) to rdso ref. drg no.40-1000.10(2) pr t.8 or sanrok drg.no.din 1435 or escorts drg no.din 1435 as per rdso specn. no.- 61-b-36/rev.-68-1, with amnd. slip no.- 1 of october-2016. warranty : as per irs condition, 30 months from date of delivery. [ warranty period: 30 months after the date of delivery ] ] , hex. nut m24 for semi permanent coupler(schaku coupler) to rdso ref. drg no.40-1000.10(2) prt.6 or sanrok drg.no.din934 or escorts drg no.din 934 as per rdso specn. no.- 61-b-36/rev.-68-1, with amnd. slip no.- 1 of october-2016. warranty : as per irs condition, 30 months from date of delivery. [ warranty period: 30 months afte r the date of delivery ] ] , hex nut m30 for semi permanent coupler(schaku coupler) to rdso ref. drg no.40-588-07(2) pt.15 or sa nrok drg.no.din 936 or escorts drg no.din 9