Extruded Threaded Holes Sheet Metal

Extrude tite screws were designed to resolve the fastening problems of stripping and spin out in thin sheet metal found when using standard round bodied sheet metal screws.

Extruded threaded holes sheet metal. Extruded hole to part edge b 3t d 2. Extrusions our commonly used to accept sheet metal screws or permit tapping into a deeper distance than just the material thickness. Tap fix screws for extruded holes in light gauge steel this article provides tap fix hole size recommendations for metals using light gauge punched extruded materials. Enthusiast 03 02 2017 11 08 pm.

Extruded holes very close to the part edge can lead to sheet metal deformation or tearing. Both holes and regular extrusions are possible in sheet metal as well as thread features. You can imagine the shape as being a body to the punch of any shape and from this protrudes the punch pin of the diameter you want. Mark as new.

The following illustration shows the extruded hole geometry. Increased torque performance in thin sheet metal applications. For the tapped screw hole this is typically made using a male punch that creates the hole and extrudes the metal. Center of extruded holes a 5 hole dia 2t extruded hole and bend edge c 3t r d 2.

A pre punched hole is required as a one hit pierce and extrude gives poor hole quality and has limited adjustment on the machine. The diameter of the pre punched hole ultimately determines the height of the extrusion. A legacy product extrude tite screws have been now largely superceded by fastite 2000 fasteners.