100x Bare Steel DIN 908 Hexagon Socket Screw Plugs  , M10x1.0 25x Bare Steel DIN 908 Hexagon Socket Screw Plugs , M22x1.5 100x Bare Steel DIN 908 Hexagon Socket Screw Plugs  , M27x2.0 If available please also quote: 100x Copper Ring DIN 7603 A, M10,13x1.0 100x Copper Ring DIN 7603 A, M22,27x1.5 100x Copper Ring DIN 7603 A, M27,32x2.0