... 4.8 ,6.8,8.8,9.8... Double End Bolt,Special Head Bolt,Bolt Maker ,M6 Bolt ... Experience ,good technology1. We are a professional manufacturer with more than 20 years experiences in screw,bolt, ... it is not easy to slide when fasteners match with machine,furniture ,drywall ,wood and so on.4. ... most of places such as drywall,concrete,chipboard,machine,wood...2) Main export market:North America,South ...