The Master Lock Excell Padlocks 3 Pack M5 EURTRILF offers high security with the same key opening all the padlocks. Made with steel bodies and a boron carbide shackle, these traditional padlocks have a security level of 9. With 4 pins for added protection, the silver coloured padlocks have an interior shackle height of 38mm and a shackle diameter of 9mm. Ideal for business, office, and industrial settings, this keyed padlock set ensures reliable access control equipment for your facility maintenance and safety needs.