1)Non-Standard bolt 2)carbon steel, Class:8.8 3)Surface:Plain 4)can supply special according to your drawing Different Materials available : carbon steel, stainless steel, aluminum, brass and copper Different finish available, ex. zinc plate, black,chrome plate, Hot dip gavani.... Size available : D3-64mm (1/4"-2-1/2"),length:144" max Small orders are accepted Experienced Staff Green Product International Approvals Military Specifications Packaging is very good With low price and high quality Product Performance pretty good Prompt Delivery Quality Approvals Reputation well Nice service