The Allstar Performance Countersunk Bolt Kit, part number ALL18633, is ideal for achieving a smooth, finished look on your projects. This set includes 10 pieces of black aluminum and steel bolts that are 1/4 inch by 1 inch in size. Each bolt features a 1/4-20 thread, Allen head, and comes with a 1-inch OD aluminum washer. Perfect for mounting roofs, side skirts, spoilers, and many other surfaces where a flush installation is desired. These bolts are designed to replace sharp-edged fasteners inside cockpits, ensuring safety and aesthetics.