The Hillman Group 150024 3/4-10 C Thread HEX NUT Product Description Coarse thread. Z Grade 2. From the Manufacturer Hex nuts are for general applications and are used with bolts and washers of the same finish. The most commonly used nut, they are often found in deck and fence building. The called out size is the inner diameter and the number of threads per inch or thread pitch. Features Coarse Thread. Z Grade 2 Country Of Origin: China From The Brand Name: The Hillman Group Model Number: 150024 USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.