Tenders for Supply of Bolts High Tensile Hexagonal Head 5/16 X 1.5 Long 18 Tpi Threads Up To 1 Le Ngth With One Hexagonal Head High Tensile Nut And 2 Plain Flat Washer Od-1, Id-3/8 A Nd Thickness 1/8 And Rectangular .Section Spring Washer Of Size Od 5/8 I/D-3/8 Thickn Ess 1/16. Bolt Nut And Washer All Are To Be Zinc Plated- Material Steel. Warranty Perio D: 30 Months After The Date Of Delivery