5/16"-12 x 1" in length, these self-drilling tek screws are zinc plated and self tapping with a 7/16" hex washer head. Designed for secure fastening in metal applications, they are ideal for use on metal garage doors, framing components, brackets, and general construction projects. Enhance your construction and metal fabrication work with our Industrial-Grade 5/16"-12 x 1" Self-Drilling Tek Screws, engineered for strength, durability, and consistent performance in demanding environments. Manufactured from corrosion-resistant zinc-plated steel, these fasteners provide long-lasting reliability for both professional installers and DIY users. The 7/16" hex washer head delivers strong tool engagement for efficient torque application while helping reduce slippage during installation. The integrated washer flange distributes clamping force evenly, minimizing surface damage and creating a tight, secure connection. Equipped with a sharp self-drilling tek point, these screws eliminate the need for pre-drilling in most light-gauge steel applications, reducing installation time and improving jobsite efficiency. The 5/16"-12 coarse thread provides aggressive bite and strong holding power in metal-to-metal fastening. With a 5/16"-12 thread diameter and 1" length, these screws are well suited for metal framing, structural brackets, equipment assembly, and garage door hardware installation. The zinc-plated finish enhances corrosion resistance, helping extend fastener life in garages, workshops, and exterior environments.