These stainless steel screws are the perfect addition to any industrial or scientific project .Through trial and error, I found that these screws have excellent grip and stay in place even under heavy loads. The 25 pack is a great value and ensures that I always have plenty of screws on hand. However, the threads can be a bit difficult to start in harder materials, so be sure to use a pre-drilled pilot hole. Overall, these screws are a reliable and durable option for any project..See full review