As an industrial and scientific professional, I highly recommend these sturdy nylon locking biscuits. As a result of using this product I found that they securely hold materials in place and are designed to resist harsh conditions. They are easy to INSTALL and can be used for a variety of applications. However, the only con i found was that they only come in one size, which may not suit some larger projects .Overall, this product is a great investment for any industrial hardware needs..