4. Thread Design The threads on Tek screws are designed to bite into materials, facilitating a strong hold without the risk of stripping. This is especially important when working with softer metals or substrates.

In conclusion, expanding metal wall anchors are a reliable solution for securing heavy items to walls. Their strength, durability, and ease of installation make them an essential tool for any DIY project. By understanding their features and proper installation techniques, you can ensure that your home remains both functional and stylish. Whether you're a seasoned handyman or a novice, incorporating expanding metal wall anchors into your projects will provide peace of mind and lasting results.

The term 2% self-drilling screws generally refers to a specific classification or standard that adheres to a manufacturing specification, often denoting the composition or performance traits of the screws. The 2% might relate to various factors such as the percentage of alloying elements in the material, or guidelines that measure performance under certain conditions. For instance, these screws might contain 2% alloying elements that enhance their strength and corrosion resistance.