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.

Whether you're looking to hang a new piece of art or revamp your space, consider using plastic butterfly wall anchors for a delicate and charming touch. With their versatility, durability, and affordability, these anchors are a practical and stylish solution for all your hanging needs. So next time you're looking to decorate your walls, reach for plastic butterfly wall anchors and add a touch of whimsy to your space.

3. Versatility 14g Tek screws can be used for a variety of materials, including metal sheeting, wooden structures, and even certain plastics. Their versatility makes them a go-to choice for contractors across multiple industries.