COMEX Components just rolled out our tough butterfly anchors—perfect for locking down steel door frames in any wall, from wood studs to concrete blocks. These bad boys fit jambs 4-3/4" to 6-3/4" deep, punch right into the frame, and grab tight with simple twists—no fuss, rock-solid hold. Builders love how they speed up installs while standing up to heavy use. free SR-24 smart racks th... https://www.comexcomponents.com/product/butterfly-anchor-for-hollow-metal-frames-in-masonry/