Hillman 5/16 X 5 In. Trusstite™ Hex Washer Screw is designed for connecting lightweight steel framing through pre-drilled or pre-punched holes, making it an excellent choice for assembling steel roof trusses. This versatile screw is also commonly used for floor trusses where pre-punched holes are present, ensuring a secure and reliable fastening. Its durable construction and specialized design provide strong support in various steel framing applications, making it a option for builders and contractors alike. Model Number: