The Loxx Pull It Up Fastener Lower Stud with Regular Washer is the two-part lower section of a Loxx Fastener System. Included is both the threaded stud and the washer to make a complete lower section for a cloth-to-cloth installation. Loxx fasteners secure automatically and lock tight until the button is pulled. This positive engagement is created by a stainless steel spring inside the upper head that fits around the ball head of the stud. The result is a fastener that won’t accidentally come undone, but is still easy to operate.