Tenders for Supply of Hexagonal Head Bolt & Nut Size: 20 X 150 Mm In Assembled Conditions I Pro Duct Grade C Ms Black To Is: 1363 Part I /2002 For Bolts & Ii Product Grade C Ms Blac K To Is: 1363 Part 3 /2002 For Nut Bolt Property Class 4.6 & Nut With 5 Warranty Period: 3 0 Months After The Date Of Delivery