Great for blind applications! A Pop Rivet joins the material by pulling the mandrel head into the rivet body and expanding it on the back side. As a low cost, tamperproof, and uniformly set fastener, a blind rivet won't torque-out like a threaded fastener. Call us for all your riveting and fastener needs. NOTE: We are an authorized POP Tool Repair Facility! Tool parts are readily available and in stock!