OWT lag bolts have aggressive threads and a sharp point that penetrate wood without pre-drilling. OWT lag bolts are especially designed for use with OWT wood ties but they are also perfect for replacing galvanized spikes in raised flower beds, landscaping or retaining walls. No need to pre-drill and sledge a spike. OWT lag bolts are protected with a specially designed coating that provides corrosion resistance for the life of the project. ACQ approved.