For securing light to medium weight equipment such as pipe work, ducts and machinery to ceilings and walls using bolts or threaded rods. Drop-ins are a flush, female anchor that incorporates an internal plug that remains in place even when used in overhead applications. The anchor expands when the plug is driven to the proper depth. *Use only TMS supplied setting tools, provided with every 100 anchors and also sold separately. ANCLA DROP-IN.