These professional-grade self-drilling bugle head screws come in a convenient 100-piece pack, perfect for your woodworking and construction needs. Each screw measures 30mm in length with a substantial 7.6mm head diameter and 4.2mm shaft diameter, providing excellent holding power. The distinctive bugle head design helps prevent splitting while allowing the screw to sit flush with the surface. The Phillips drive head ensures reliable tool engagement and consistent driving performance. These versatile fasteners feature sharp, self-drilling tips that eliminate the need for pre-drilling in most applications, saving you valuable time on the job. The countersinking bugle head design transitions smoothly to the threaded portion, reducing material stress during installation. Ideal for general construction, cabinet making, deck building, and various woodworking projects where secure fastening is essential. The generous 100-piece quantity ensures you'll have plenty of screws on hand for larger projects or multiple jobs.