Rzvnmko 500 PCS M3 Black Self Drilling Screws, Round Head Self-tapping Screws for Soft Wood Metal, with Plastic Box

7 Different Types. M3 * 6 (100PCS) / M3 * 8 (100PCS) / M3 * 10 (100PCS) / M3 * 12 (100PCS) / M3 * 16 (40PCS) / M3 * 18 (30PCS) / M3 * 20 (30PCS); These can meet your different needs High Quality Material. Our M3 self tapping screws are made of excellent quality carbon steel. It presents a high tenacity and very solid; widely used in daily life and industrial production Sharp and hard. The screw head self-tapping screw is deep and the force is uniform. The tip of the screw is sharp and can easily cut through film, plastic or wood; the thread is very deep, so it is not easy to fall off.It has high hardness and is not easy to deform. Easy to Carry. All M3 self-tapping screws come in a plastic storage box, so you can easily find your way around the sets and avoid loss when needed. Improve work efficiency. With M3 self-tapping screws, installations are now more precise with increased contact area, reducing pressure and protecting parts and screws.