1) Grade: 2, 5, 8 2) Size: 1/4''—1 1/2'' 3) Material: Carbon steel, alloy steel ,stainless steel 4) Surfaces: Black, zinc plated, H.D.G. etc. 5) Packaging: 25kgs per box, 36 boxes per pallet Manufacturer claims: (1)Competitive price with high quality (2)Various of Design (3)Ensure delivery in time (4)Nice solid packing