Galvanized steel M8×17 mm Pack of 50 pieces Ø body of the rivet - 11 mm Drills for hole preparation: 11.5 mm , 11 mm Threaded rivets are used with dual riveters For more reliable fixation of the rivet in the material, a longitudinal notch is applied on the body of the rivet. Threaded rivets are sold in packs of 50 pieces. One pack is equal to one unit of goods. Fastening features: In fastened thin sheet materials, a hole with a diameter of 11.5 mm is drilled. After that, the threaded rivet is screwed onto the working part of the riveter (1), the rivet is inserted into the prepared hole (2), and then the sleeve is compressed by squeezing the handles (3). As a result, the fastened materials are tightened and securely fastened to each other. A bolt or screw is then screwed into the resulting threaded hole (4).