Type:Bolt with Nuts. Material Grade: ASTM A320 B7/A194 2H. Size: 1/2 Inch X 70mm Surface Treatment: Black Paint, Zinc Plated etc. Application: For Fasterning,Sealing.s Packing: In Carton or Wooden Box or as Your Requirements. Payment Terms: TT/LC, West Union, Paypal and O/A. Delivery Time: 7-25 Days after Received the Deposit.