supply of hex. head bolt & nuts of different sizes.hex. head bolt & nuts of different sizes.,hex. head bolt & nut, m10 x 65 mm, product grade c, m.s. black matl. & spec.: is: 136 3 (part - 1) /2019 (5th rev.) and is: 1363 (part - 3) / 2018 (5th. rev.), property class 4.6, for bolt and pr operty class 5 for nut. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] workshop carriage stores/kgp, west bengal 500.00 kg , hex. head bolt & nut, m12 x 45, product grade c, m.s.,black. matl.& specn : is:1363 (p art - 1) /2023 (6th rev.) and is: 1363 (part - 3) /2018 (5th. rev.), property class 4.6 for bolt and propert y class 5 for nut. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] workshop carriage stores/kgp, west bengal 10000.00 kg , hex. head bolt with nut, size m20 x 130 mm of product grade c, ms black matl. & spec. : is: 1363 (part - 1) /2019 (5th 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 ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] workshop carriage stores/kgp, west bengal 200.00 kg , hex. head bolt & nut m20 x 220, product grade c m.s. black. matl. & spec : is: 1363 (p art - 1) /2019 (5th rev.) and is: 1363 (part - 3) / 2018 (5th. rev.), property class 4.6 for bolt and proper ty class 5 for nut. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] workshop carriage stores/kgp, west bengal 1500.00 kg , hex. head bolt & nuts, m12 x 75 mm of product grade c ms black matl. & spec.:is:1363 (pt.- 1) / 2019 (5th rev.), prop. class 4.6 f