You are purchasing a Defender, Discovery 1 & Range Rover Classic A Frame Stainless Steel Fixing Kit (Pre 2009 on a Defender)
A4-80 is the equivalent of Mild Steel 8.8 high tensile bolts
Kits Consists of;
2no M8 A4-80 x 20mm Hex Head Bolts
2no M8 A4 Spring Washers
4no M10 A4-80 x 50mm Hex Head Bolts
2no M10 A4-80 x 60mm Hex Head Bolts
12no M10 A4 Flat Washers
6no M10 A4-80 Nylon Nuts
2no M12 A4-80 x 160mm Hex Head Bolts
4no M12 A4 Flat Washers
2no M12 A4-80 Nylon Nuts

Kit does not include the 2x 3/4″ x 4″ bolt as we cannot source these in stainless steel