m16422 ht bolts required for conc. plant m16422 ht bolts required for conc. plant , ht nut & bolt size: m20 x 80 alongwith 2 nos flat washers of thickness 4mm, grade -10.9 , ht hex hd nut m20 grade 10.9 , ht bolt with nut m16x65mm,alongwith one washer , grade -10.9 , ht bolt with nut m16x40mm with one washer thickness 3mm grade 10.9 , ht bolt with nut m20x220 half threaded with one washer thickness 3mm, grade -10.9 , h.t.hex bolt & nut confirming to is:1367 size : m-24 x 220 half thread, with one washer thickness 3mm ,grade-10.9 , ht hex hd bolt with ht nut m30x220mm, with one washer thickness 3mm ,grade 10.9 , allen head cap screw m6x30mm ,grade 10.9 , ht hex bolt & nut & 1 chk.nut m36 x 210,withtwowasher thickness 3mm ,grade 10.9 , h.t.bolt and nut with full thread length 30 x250mm, with twowasher thickness 3mm grade 10.9 , ht stud with 2 nuts 1x7 grade 10.9 , ht hex hd.bolt with nut size- m24x150, with one washer thickness 3mm ,grade 10.9 , ht boltwith nut size- m 1/2 x 50 mm,with one washer thickness 3mm ,grade 10.9