Grip-Rite 6HGTT30BKE 6 in. x 3-Gauge 60-penny Exterior Galvanized Spiral Shank Timber Tie Nails are designed to join heavy timbers together. The flat head and blunt diamond point make driving these large-gauge nails easy and reduce the chance of splitting. Spiral shank provides superior grip and long-lasting hold for landscaping timber.