About Self tapping Screws. Point Style : Type A Self Tapping. Flat head has a flat top and a taper. Flat heads are designed to be used in a countersunk hole. Flat head stainless screws made of a highly corrosion resistant grade 18-8 stainless steel with a flat top that tapers down to a cone shape at an 82 degree and will sit flush into a countersunk hole giving a finished appearance; 82 degree is the most common countersink screw head angle for machine screws with a flat head.
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