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") .