Supply Of Hex Head Bolthex Head Bolt,Hex Head Bolt With Thread M20,Nominal Length 50Mm And Property Class 4.8, Conforming To Is- 13 63(Part-1):2002/Iso-4016:1999(4Th Revision) With Hexagon Nut With Thread M20 And Property Class 5,Conformi Ng To Is:1363 (Part-3):2002/ Iso-4034-1999 (4Th Revision). [ Warranty Period: 30 Months After The Date Of Deli Very ] , Hexagon Head Bolt With Thread M 20,Nominal Length 65 Mm And Property C Lass 4.8, Conforming To Is:1363(Part-I):2002/Iso-4016:1999 (Fourth- Revision) With Hexagon Nut With Thread M20 And Property Class 5, Conforming To Is:1363(Part-3): 2002/Iso-4034- 1999(Fourth Revision). [ Warranty Period: 30 Months After The Date Of Delivery ] , Hexagon Head Bolt With Thread M20, Nominal Length 75Mm And Property Class 4.8,Conforming To I S:1363(Part-1)2002/Iso-4016:1999 (Fourth- Revision) With Hexagon Nut With Thread M20 And Property Class 5, C Onforming To Is 1363 (Part 3):2002/Iso 4034:1999 (Fourth Revision). [ Warranty Period: 30 Months After The Dat E Of Delivery ]