The M in M20 signifies that it is a metric bolt, aligning with the International System of Units (SI). The number 20 denotes that the nominal diameter of the bolt is 20 millimeters. Foundation bolts are typically made from high-strength materials, such as structural steel, to ensure they can withstand substantial loads and resist environmental factors.

Hex head drilling screws are characterized by their hexagonal-shaped heads, which allow for a superior grip and torque when fastening. This shape enables the use of a wrench or socket, providing better leverage than traditional flat or round heads. This feature is particularly advantageous in applications where high levels of torque are necessary to ensure a secure connection. Moreover, their design facilitates easier installation, making them a favorite among construction workers and DIY enthusiasts alike.

2. Weight Reduction In industries such as aerospace and automotive, weight is a critical factor. Bonded fasteners allow for the elimination of heavy mechanical fasteners and their associated components, leading to overall weight savings. This not only enhances fuel efficiency but also contributes to improved performance of the final product.

4. Drive in the Nail Use a hammer or a pneumatic tool to drive the nail into the anchor. As you drive the nail, the anchor expands against the walls of the hole, creating a secure fit.