These A400 Printhead Cover Fixing Screws are professional fasteners for A400 series CIJ inkjet printers. They securely fix the printhead cover in place, ensuring stable installation and reliable protection for internal printhead components. Made of high-strength, rust-resistant and durable metal material, they feature stable structure, good toughness and long service life. Precision manufactured to perfectly fit A400 printers, they are easy to install and replace. These fixing screws effectively enhance assembly stability, prevent loosening and damage, reduce downtime, and support reliable industrial coding and marking production.