Suitable for a wide variety of construction projects. Includes 675 pieces of the five most popular self-tapping screws in a durable carry case. Fine thread pan head x 150 (1"); coarse thread pan head x 150 (1"); fine thread washer head x 150 (1-1/4"); coarse thread washer head (orange) x 75 (2-1/2"); coarse thread washer head x 150 (1-1/4").