E-Magnets Neodymium pot magnets combine the power of a neodymium magnet with the durability of a mild steel shell. They offer exceptional performance, especially through larger air gaps. The magnets have a 4mm tapped hole in the back for mounting and are supplied with a removable steel hook. Maximum operating temperature: 100°C. The E-Magnets 605 Neodymium Deep Pot Magnet has the following specifications: Diameter: 15mm (19/32 inch). Height: 15mm (19/32 inch). Maximum Pull: 5kg (11 lb).