High quality: Made of 304 stainless steel, offering resistance, solid body does not rust Practical design: with an open end, a small flange, a round hole, a threaded inner wall and a partially non -slip area, This flat -headed rivet nut has a good fixing function performance. easy to use: the rivet screw often has an integrated function, such as a slit, to facilitate the tightening of the fixing. 20 Kit of tools for Rivets nuts Decline: the adapter is a part located between each socket and the front end of the assembly tool. It is not a tool. After-sales service: we are confident in the quality of our products, which will not disappoint you. Please contact us if you have problems with our product, so I will answer you as soon as possible within 12 hours