4sets/lot Threaded Sleeve Built-in threaded Connection with screws and nuts for 20 30 40 Series Aluminum Profile
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Illustrate:The advantage of this connector is that the profile does not need to be tapped or punched, and the installation is firm. It is more suitable for profiles with arcs, such as 6630R or 8840. Suggestion:40 series can only be used for the European standard 40 series profiles with a wall thickness of 2.0 or more. If the wall is relatively thin, the external thread of the threaded sleeve cannot be locked and cannot be fixed. Material: galvanized Recommended screws: For 20, it is recommended to use hexagon socket M4*30 screws For 30, it is recommended to use hexagon socket M5*35 screws For 40, it is recommended to use cylindrical head hexagon socket M6*40 screws For 45, it is recommended to use hexagon socket M6*40 screws NOTE:Avoid that the screw head is too large to fit into the slot.