Hey DIYers and mechanics - ever been in the middle of a project only to discover you're missing the right lock nuts? We've got you covered with these serrated lock nuts in that sometimes-hard-to-find 1/4-28 fine thread size. Made from stainless steel, these bad boys resist rust and corrosion, making them perfect for outdoor projects, automotive work, or any application where vibration might be an issue. The serrated teeth bite into the surface to prevent loosening, so you can trust they'll stay put once tightened. This 8-piece pack gives you plenty for your current project plus some extras for the toolbox. Whether you're working on bikes, machinery, furniture, or custom projects, having the right fasteners makes all the difference. The fine thread provides better adjustment precision and is commonly used in applications where coarse thread just won't cut it. Keep a few of these in your workshop - you'll be surprised how often you reach for them when that special project comes up!