HOW DOES A RIVET NUT WORK? A hand or pneumatic tool pull-up stud engages the threads of the rivet nut and exerts a pull, causing the shank to expand tightly against the material being fastened. This step is what is called "upsetting" the rivet nut. FAQ Q1.Can I get your samples? A:Yes,if you want to get the sample, please contact us without hesitate, meanwhile, you can get more satisfied products and price. Q2. What is your terms of payment? A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.