SK Tuote Oy manufactures the longest fasteners and has the widest product range in Europe. Our selection of fasteners covers all fastening underlayings from concrete to steel. Every model of fasteners manufactured by SK Tuote is type approved in demanding tests by Norwegian Building Research Institute. In order to guarantee quality roof building even in the future, all our customers that buy fasteners are allowed to use our type-approved computer program that calculates the quantity of fasteners required for each building project.