M3 M4 M5 M6 6061 Aluminum Alloy Allen Bolt Hex Socket Button Head Screws ISO7380 | QuarkMRO

Need some lightweight, corrosion-resistant screws for your project?

These are metric button head screws made from 6061 aluminum alloy.

They come in sizes M3, M4, M5, and M6—so you get a variety pack.

The head style is button head with a hex socket drive (Allen key).

They meet the ISO7380 standard.

Great for applications where you want to save weight or avoid rust, like RC cars, drones, electronics, or custom builds.

They're from QuarkMRO, and the grade is solid 6061.

Just pick the size you need and get to work.

Clean, strong, and look good too.