FASTENER

摘要

A fastener comprising a thin driving head (40) and a threaded shank (50), wherein head (40) includes recess (25) having a top portion (11) and a bottom portion (12) for receiving the tip of a driver. Recess (25) further comprises an abutment or step (10) extending from bottom portion (12) of recess (25) with abutment (10) running along the periphery of recess (25). Preferably recess (25) has tapering walls and is triangular in configuration with an abutment (10) located in at each corner. The fastener may be a miniature screw for use in electrical or electronic appliances such as computers and mobile phones.