1 4 20 self drilling screw

The M12 in the term refers to the metric screw thread size, which measures 12 millimeters in diameter. This size is commonly used for medium to heavy-duty applications where robust anchoring is crucial. Chemical anchors, unlike mechanical anchors, rely on a chemical adhesive to create a strong bond between the anchor and the substrate. They offer advantages like high load-bearing capacity, resistance to dynamic loads, and minimal impact on the surrounding material.

...

In addition to their ease of installation, zinc self-drilling drywall anchors are also incredibly durable and reliable. Made from high-quality zinc material, these anchors are resistant to rust and corrosion, ensuring that they will provide a long-lasting hold for your decorations or fixtures. Whether you're hanging a picture frame, a shelf, or a light fixture, you can trust that these anchors will securely support the weight without any risk of damage or falling.

...

One of the key benefits of the M12 chemical anchor is its versatility. It can be employed in a wide range of environments, from indoor construction to outdoor applications exposed to weather elements It can be employed in a wide range of environments, from indoor construction to outdoor applications exposed to weather elements It can be employed in a wide range of environments, from indoor construction to outdoor applications exposed to weather elements It can be employed in a wide range of environments, from indoor construction to outdoor applications exposed to weather elementschemical anchor m12. Moreover, it offers excellent performance in situations where traditional anchoring methods may struggle, such as in weak or porous substrates.

...