The screws are fantastic! They are made from high-quality stainless steel that ensures long-term durability .The screws can be used for a multitude of purposes such as auto repairing furniture making, and machine assembly. The screws are cost-effective and COME in a pack of 50, so it is great value for your money. The only con is that the screw heads are not magnetized, which can make it more challenging to keep them in place. Overall, the Prime Line Stainless Screws are an industrial and scientific essential!