Features: 【High Quality Locking Nuts】 Excellent Carbon steel material with high hardness, wear and corrosion resistance, not easy to deform.【Self-Locking Flange Nut】 Allows you to fix the cutting discs conveniently and quickly, with no need to use a wrench or additional tools.【Pull-ring Type Retaining Nut】 Quick and Convenient to install and remove the grinding discs on the angle grinder, just simply screw it on and off.【Angle Grinder Clamping Nut】 Can secure grinding discs or other attachments to an angle grinder with an M14 spindle, compatible with most M14 angle grinders.【Quick Release Nuts】 Allow to quickly change most M14 grinding accessories such as circular saw blades, cup wheels, diamond cutting discs, grinding discs, pot discs, and diamond plates. Specification : Material: Carbon SteelModel: Angle Grinder Quick Release Nut M14Disc Diameter: 45mm/1.77inchFemale Thread: M14(14mm/0.55inch)Thickness: 9mm/0.35inchColour: SilverType: Angle Grinder Nut attachmentsPackage include:1 PCS M14 Quick Release Angle Grinder Locking Flange Nut.