Welding end cap dia 6 mm nut 1/4"
On this product page you will find a brass welding cap. These welding caps are soldered to the ends of copper tubes in combination with a welding nut. This round surface seals off when the nut it tightened. The brass material compresses and this seals off the valve. At some point this seal will leak. This small size you see that it is used in combination...
€1.24