Whether you need 2.5mm screws or 4mm screws, or anything in between, it’s time to turn to Monster Bolts! These screws specifically come in metric sizes. Our flat head machine screws come in either carbon steel or stainless steel A2, so you can choose the material that makes the most sense for you. Monster Bolts is your premier choice when it comes to selecting top quality nuts, bolts, and screws at a quality price. Contact us today if you have any questions about our products or if you just want to tell us what you think!