supply of dia al. alloy , 25mm dia al. alloy coupler to is:1285-(latest) with desgn. 63400 condition t6 (ne w) of table 2 threads as per table-1 of is- 14763 (latest), with is-14768 part-1 clause 6.3.3 (me dium mechanical stresses), clause 6 table 1 s.no. (vi) for temperature classification, clause 6.8.1.4 (protection against dust) and clause 6.9.3 (with declared tensile strength for 10 kg load) and dimensions to is:14768 part-2 (latest). the length of the coupler shall be as per is :14768 part-2 latest fig.102 marked x that is 25 mm long. [ warranty period: 30 months after the date of delivery ] ] , 40mm dia al. alloy hex lock nut to is:1285-(latest) with desgn. 63400 condition t 6 (new) of table 2, with thread as per table-1 of is-14763 (latest), with is-14768 part-1 clause 6.3.3 (medium mechanical stress), clause 6 table 1 s.no.(vi) for tempreture classification, cla use 6.8.1.4 (protection against dust) and clause 6.9.3 (with declared tensile strength for 10 kg load) and dimension to tab.6 of is:3837- (latest) [ warranty period: 30 months after the date o f delivery ] ] , 40mm dia al. alloy coupler is:1285-(latest) with desgn. 63400 condition t6 (new) as per drg.no. of table 2, with threads asper table-1 of is:1476 firms offer : as per indian standa rd is 14768 length of the coupler will be 35 mm. [ warranty period: 30 months after the date of delivery ] ] , 25mm dia aluminium alloy hex lock nut to is:1285-(latest) with designation 63400 condition t6 (new) of table 2, with threads as per table-1 of is-14763 (latest),with is-14768 p art-1 clause 6.3.3 (medium mechnical stresses),clause 6 table 1 s.no.(vi)for temperature clas sification, clause 6.8.1.4 (protection against dust) and clause 6.9.3 (with declared tensile st rength for 10kg load) and dimensions to tab.6 of is:3837-(latest). [ warranty period: 30 month s after the date of delivery ] ]