supply of (description of pl 73030612):- hex head bolt and nut, m 12 x 25 mm. product grade c, m.s., black matl. & spec. is:1363 (part - 1)/2023 (6th rev.) and is: 1363 (part- 3) / 2018 (5th. rev.), property class 4.6 for bolt and property class 5 for nut. (description of pl 73100201):- isi marked nut m.s.hex black m12 mm to is:1363-part-iii-2002 with property class 5 . , hex head bolt and nut, m 12 x 25 mm. product grade c, m.s., black matl. & spec. is:1 363 (part - 1)/2023 (6th rev.) and is: 1363 (part- 3) / 2018 (5th. rev.), property class 4.6 for bolt and property class 5 for nut. [ warranty period: 30 months after the date of delivery ] ] , isi marked nut m.s.hex black m12 mm to is:1363-part-iii-2002 with property class 5 . [ warranty period: 30 months after the date of delivery ] ]