Iron (trivalent chromate) + pot giza tight
Resin-Specific Anti-Loosening Self-Tapping Screw "Giza Tight"
The screw features square grooves divided into four sections around its circumference, providing a strong anti-loosening effect in harsh environments such as vibrations and temperature changes. The asymmetrical screw threads alleviate fatigue in the female threads, allowing for smooth insertion. The sharp threads easily bite into the female threads, preventing boss breakage, and they deeply embed into the resin, enhancing the anti-backout effect. The groove depth is approximately 70% of the thread height, and the escape groove angle is less than 90°, allowing for repeated use. Giza Tight is a registered trademark of Nitto Seiko Co., Ltd. It complies with EU-RoHS2 standards.