... Service Team 4, Own Development Department 5, OEM 1. What is the Hex Cap Screws?ASME standard B18.2.1 -1996 specifies ... referred to as bolts but based on the US government document, Distinguishing Bolts from Screws, the US government might classify them as ... offered Morgen USA, New Delhi Airport, and Europe Market. Our fastener is used for the railway, road, bridge, tunnel projects, steel structure ...