... Team 4, Own Development Department 5, OEM 1. What is the Hex Cap Screws?ASME standard B18.2.1 ... experience. Our factory has quite convenient transportation, which is about 80km far from Shanghai, 70km far from ... Hangzhou.3. How is the quality of Jiaxing Relia’s Hex Cap ... , New Delhi Airport, and Europe Market. Our fastener is used for the railway, road, bridge, tunnel projects, ...