HubBolt for BENZ: 1. QUALITY: Grade 8.8, 10.9, 12.9 . 2. SURFACE PROTECTION: Black oxide withProtective Oil, Phosphate (Grey), ZincCoating (Yellow/Silver) and Dacromet (Sliver). 3. MATERIAL:45#, 40Cr, 35Crmo (SAE1045, SAE5140, SAE4135). 4. PACKING: A). 1 setin a plastic bag→5 sets in a smallbox→10 boxes in a carton. B).25--30 KGS per Carton; 1.5T in a pallet as LCL shippment. C). If it'senough quantity, it's no problem to pack asbuyer's logo boxes. For more product details, please don't hesitate to contact us. Your inquiry is highly appreciated.