METAL FRAME MEMBERS FOR USE IN BUILDING CONSTRUCTION

摘要

A metal frame member for use in building construction includes a recess (12) with a hole formed in the recess for receiving a screw (2) for connecting the frame member to a like frame member. The recess includes a boss (16) formed around the periphery of the hole and against which the underside of the head (4) of the screw sits when driven by an external driver tool (8) having a socket (6) within which the head fits. The presence of the boss and the sizing of the driver tool ensures that an outer end of the driver tool is maintained in spaced relationship from the base of the recess externally of the boss. Accordingly possible damage during driving to protective coating on the frame member is avoided.