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.

Choosing the Right Hex Screws

In the realm of fasteners, white wafer head self-drilling screws are a versatile and efficient solution for a variety of construction and repair applications. These screws are notable for their unique design, enabling them to drill into materials without the need for pre-drilling a pilot hole. This feature saves time and enhances the efficiency of the installation process, making them a favored choice among contractors and DIY enthusiasts alike.

The Versatility of 13mm Self-Drilling Screws

A black hex head bolt features a hexagonal head that allows for easy tightening and loosening using standard tools, such as a wrench or socket. The black designation often refers to the finish applied to the bolts, which typically involves a coating such as black oxide or a similar treatment. This finish not only enhances the bolt’s appearance but also provides superior corrosion resistance, making them suitable for a variety of environments.