Attributes . EverLink BTR screw connectors top) 1 1.5-70 mm? - rigid || EverLink BTR screw connectors top) 1 1.5-50 mm? - flexible || EverLink BTR screw connectors bottom) 1 2.5-95 mm? - rigid || EverLink BTR screw connectors bottom) 1 2.5-70 mm? - flexible . Names