ASTM A490, or equivalent 20mm diameter x 60mm long Fully Treaded bolts, complete with Washers and Double Lock Nuts, Hot deep Galvanized ASTM A490, or equivalent 20mm diameter x 70mm long Fully Treaded bolts, complete with Washers and Double Lock Nuts, Hot deep Galvanized ASTM A490, or equivalent 20mm diameter x 90mm long Fully Treaded bolts, complete with Washers and Double Lock Nuts, Hot deep Galvanized ASTM A490, or equivalent 20mm diameter x 110mm long Fully Treaded bolts, complete with Washers and Double Lock Nuts, Hot deep Galvanized ASTM A490, or equivalent 16mm diameter x 60mm long Fully Treaded bolts, complete with Washers and Double Lock Nuts, Hot deep Galvanized ASTM A490, or equivalent 16mm diameter x 70mm long Fully Treaded bolts, complete with Washers and Double Lock Nuts, Hot deep Galvanized ASTM A490, or equivalent 16mm diameter x 90mm long Fully Treaded bolts, complete with Washers and Double Lock Nuts, Hot deep Galvanized ASTM A490, or equivalent 16mm diameter x 110mm long Fully Treaded bolts, complete with Washers and Double Lock Nuts, Hot deep Galvanized.