GREAT QUALITY -- These insert nuts are made of from high quantity zinc plated carbon steel material which provides strength and offers good resistance in many environments.
FEATURE -- Insert nuts are advantageous over barrel nuts and T-nuts, because they can be installed from one side of the workpiece.
EASY TO USE -- They are multipurpose threaded insert nuts that you can simple drive with them,easy to use.
ASSORTED KIT -- There are 6 different sizes insert nuts(please see the detail size in the description or the photos) so that you can handle on your project for free.
NOTE -- The pre-drilled hole must be as deep as the length of the insert nut plus any portion of the bolt that may be screwed past the end of the nut in the work piece