Gold star flat head YTX screws. Gold zinc coating . Star Drive. Zinc Fastener: An excellent general purpose gold latch for professional operations and demanding industries with hard or soft woods, chipboard and other rigid materials. removable and reusable. Cutting Tips – Auto-countersinking head with underhead. Heat treated and hardened high quality steel. Depth, Width, Sharp Thread: Provide maximum hold and cuts cleanly and easily. Hollow Star Drive: Twice the torque of Phillips and square drive. Reduces camout and final load. Provides better drill life. Reduces spinning and closing damage. True flat head countersunk bits: Underhead bits cleanly cut the screw flush into wood. Knurled shank. Screw makes it easier and less tiring to drive reams hole in table being set, reducing friction on the shank and driving tool. It makes it easier to screw and less tiring to drive spiral notches in threads cutting through fibrous materials and greatly reduce the torque needed to drive the screw without affecting holding power. 17 Type Notched Point: Starts quickly without walking and reduces the need for pre-drilling.