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Step 14Stepped Slot Screw System
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This screw and driver are designed to center on the screw head and not slide out. Some of the positives of the system are that it works, although rarely encountered, as it did not catch on as other more popular drive systems were developed. This drive did address some of the deficiencies of slot screws including: the driver does automatically center or line up with the slot; the screw keeps the axis of the screwdriver aligned with the axis of the screw; the sides of the driver are parallel and so reduces "camout". A secondary feature is vandal-resistance as the wrong kind of driver will not enter deep enough and may not have enough torque to remove a screw without damaging the head.
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This screw and driver are designed to center on the screw head and not slide out. Some of the positives of the system are that it works, although rarely encountered, as it did not catch on as other more popular drive systems were developed. This drive did address some of the deficiencies of slot screws including: the driver does automatically center or line up with the slot; the screw keeps the axis of the screwdriver aligned with the axis of the screw; the sides of the driver are parallel and so reduces "camout". A secondary feature is vandal-resistance as the wrong kind of driver will not enter deep enough and may not have enough torque to remove a screw without damaging the head.
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