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Intro: When a Phillips Is Not a Phillips! Cross-head, Cross-Point, Cruciform, Square Drive Screws and Drivers These screw types have a + shaped recess on the head and are driven by a cross-head screwdriver, designed originally ... Step 1: Early Screws.
Let NH help you to remove security and other screws with damaged heads. Security screws, also known as one-way screws, are very simple in design. They are available in either flat head or round head design in sizes ranging from #6 to #14.They are slotted screws, and can be installed with a standard slotted screwdriver. Removing them is another matter.et NH help you to remove security and other screws with damaged heads. Security screws, also known as one-way screws, are very simple in design. They are available in either flat head or round head design in sizes ranging from #6 to #14.