Basic info Model No.: A563M Type: Hexagon Head Head style: Hexagonal Material: Carbon Steel Standard: DIN,ANSI,GB, JIS, BSW Additional info Trademark：Milfast Packing: 25kgs Per Box, or According To client′s Requirement Origin: China HS Code: 73181600 Product Description Grade: 8S, 10S Size: 1/4"-4" Material: Carbon steel, alloy steel Surfaces: Black, zinc plated, HDG Packaging: 5kgs per box, 36 boxes per pallet Keyword: A563M / A563M Hex Nuts