Bolts SA 193 Gr. B7 as below size and as per attached drawing The required bolts are use up to 500 Deg C M10 x 19mm (L) – 500 pcs. M8 x 25mm (L)- 200 pcs. M8 x 16mm (L) – 200 pcs. M20 x 38mm (L) – 150 pcs. M20 x 48mm (L) – 200 pcs. M16 x 30mm (L) – 200 pcs. M16 x 38mm (L) – 200 pcs.