Details Wheel Bolt for BPW: 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 as your logo boxes. 5.It's no problem producestrictly according to client's requirement(drawings or samples). For more product details, please don't hesitate to contact us. Your inquiry is highly appreciated.