Basic info Model No.: A563 Type: Hexagon Head Head style: Hexagonal Material: Carbon Steel Standard: ASTM Additional info Trademark：MY Packing: 25kgs Per Box, 36 Boxes Per Pallet. Origin: China HS Code: 73181600 Product Description Grade: A563 GR A C DH Size: 1/4"-4" Material: Carbon steel, alloy steel, stainless steel Surfaces: Black, zinc plated, zinc (Yellow) plated, H. D. G. Etc. Packaging: 25kgs per box, 36 boxes per pallet Keyword: A563 Nuts / A563