If you are searching for metric hex keys, we have you covered. Shop Monster Bolts today for high-quality nuts and bolts, as well as for whatever else you need to get that project started. Our hex keys are made with black alloy steel, which has been made from heat treated alloy steel. This means you can be sure that they will last through your project and beyond. We offer over ten different metric sizes to help you find the perfect fit. For all of your nuts and bolts needs, shop Monster Bolts!
Login / Signup
