GOSTOP is a leak-proof rivet with a sealed end completely encapsulating the mandrel head inside the body. Fully Leak proofed, it will withstand pressure up to 30 bars. Available in different materials, GOSTOP may be used to assemble very hard materials (steel, stainless steel) as well as very soft materials (plastic, glass). This rivet requires sticking precisely to recommended drilling diameters. Otherwise, wiredrawing may occur. For a perfect seal, we recommend a neoprene washer under the rivet head.