Abstract: A lockable band clamp, such as clamping together the rims of a housing and a base of an equipment housing, has a flexible band with Vee-shaped portions for positioning around the rims, the rims positioned in the Vee-shaped portions. The ends of the band have end members through which passes a bolt, a tubular member threading on to the bolt. Relative rotation between bolt and tubular member acts to pull the end members together and tighten the band about the rims. The end members have projections which overlap. A locking member which, in a locked position, engages at one end over a rod through the tubular member and at the other end aligns with holes in the projections whereby a padlock can pass through the holes and a formation on the locking member, preventing relative rotation between bolt and tubular member.