Need some tough, corrosion-resistant screws for a project? This 20-pack of M6x10mm hex socket cap screws has you covered. 'M6' means the screw thread is 6mm in diameter, and '10mm' is the length under the head. They have a round (cap) head with a hex socket drive (that's the Allen key/hex key hole in the head), which gives you a clean look and a lot of torque without stripping like a Phillips head can. They're made from 304 stainless steel, which is great for outdoor use, in damp environments, or anywhere you need something that won't rust easily. The threads are deep and well-made. These are super versatile machine screws used in everything from furniture assembly and machinery repair to DIY projects, robotics, and automotive work. Having a small stash of common sizes like this in your toolbox is always a good idea. Just remember, you'll need a 4mm Allen key/hex driver to tighten them. Good quality, good price, super useful.