Self-Tapping Screw Fastener - GizaTite Self-Tapping Screw Fastener is very unique self-tapping screw for plastic fastening. It shows not only very high ability of anti loosening under hard vibration and large temperature change, but also contribute to raise productivity by preventing cracking of boss thanks to it's sharp thread angle which relieves internal stress. Also, as Giza Tite can be manufactured from aluminum, it will help weight saving of your products.