The knurled (splined) body series has a large flange to provide increased strength in punched and drilled holes. Knurled body provides a higher resistance to spin-out when installed in softer materials. Newport Fasteners Rivet Nuts allow for blind fastening in Thin Sheet attachments. Grip Range: Range of panel thickness values into which a given part can be properly installed. It is common practice in the blind threaded insert industry to embed the maximum grip into the end of the part. Flat Head: A style of blind threaded insert having a head with a rectangular cross section. Flat head inserts typically have relatively thick heads and therefore provide high levels of push-out strength. For this style of part the head projects above the panel after installation. Threaded Inserts can be installed into sheet-metal, tubing, extrusions, plastics and other materials to provide an internal thread for subsequent component assembly. Newport Fasteners Rivet Nuts are the perfect solution for providing high quality, load bearing threads even in single thin sheets and can be used in a variety of materials where alternative methods cannot maintain torque and pull out loads. They enable components which are assembled later in the production cycle to be adjusted and are ideally suited to applications where access is only available from one side of the workpiece.