Supply of Anchor Bolt M20x277 Lg For2480 Mm Dia. Si. Bcb-42 Flue Gas Id Fan Make: Standard Q3 Csk Socket Hd. Screw With Nut M16 X 2P X 40 Mm Lg Matl. Htas 10.9 Gr. For 2990 Mm Dia Di. Bcb-42 F Q3 Bolt & Nut Hex Hd. M16 X 2P X 45 Lg Is: 1367 Grade-B Class: 4.6 & 4. For 1353 & 1270 Mm Dia Fan Q3 Washer 18 Id X 50 Od X 3.15Th Mm For 1353 & 1270 Mm Dia Fan Q3