WerFamily 12mm 0.47" Waterproof Momentary Type Resetable Stainless Steel Metal Push Button Switch Flat Top 2A/36VDC 1NO High quality and long lasting. Mounting hole size: 12mm; Head Diameter: 14mm Switch rating: 2A/36V DC; Switch combination: 1 NO; Operation types: Momentary (Resetable). Head shape: Flat; Enclosure material: Stainless Steel Degree of protection: IP67, IK08