PEM DSO™/DSOS™ Threaded Standoffs offer a self-clinching design ideal for close-to-edge applications. These standoffs feature a through-hole with a round and knurled head. The DSO™/DSOS™ threaded standoffs are installed with a squeeze in properly sized round holes and permanently mounted in the thin sheet. The DSO standoffs are used in steel or aluminum sheets of HRB 80/HB 150 or less, while the DSOS standoffs are HRB 70/HB 125 or less.