... galv., screws with washer head and self-drilling point, blued galv., screws with self-drilling point and pan head, checkered Philips ... thread drywall screws (black phosphated), color galv., screws with self-drilling point, color galv., screws, e.g. pan head screws ... 3) Shape: washer head, pan head, checkered Philips head, self-drilling point, coarse thread, fine thread 4) Available: bright, blued ...