280 Piece Grade 12.9 Alloy Steel M3 Hex Socket Cover Head Bolt Screw Nut Assortment Kit with Storage Box - Includes Lengths 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 16mm, 20mm, and 25mm Review

As a result of using this product, I found that the storage container was flimsy and pieces fell out easily. The pieces themselves were low-quality and didn't fit properly. The only pro was the variety of sizes included. The cons outweighed any benefit and I had to purchase a different set to complete my project.

The super cheap container's clasp failed before it arrived causing all the fasteners to be mixed up. Other manufacturers wrap their products tightly in plastic, to prevent this they have loosely wrapped them in folded plastic. What a great way to ruin a product.

The whole box was filled with oil. It was so much oil that the sticker with all the sizes of the bolts was long since erased. I have tried to remove the oil from the bolts but it is very difficult to remove from fine threads and hex heads. This is also intentional: instead of packing the screw box in a loose plastic bag with an air hole, it is in an airtight bag. That's how it should be, otherwise the oil would leak everywhere. They knew what they were doing. We strongly recommend avoiding this