foundation bolt m20

Rubber washers are circular disks made from rubber or synthetic elastomers, often used to create a seal or cushion between two surfaces. When paired with hex head screws, these washers serve to enhance the effectiveness of the fastener by providing a barrier against moisture, dust, and other elements that can lead to degradation over time. This is particularly important in outdoor applications or environments where exposure to the elements is a concern.


...

In addition to their efficiency and practicality, self-drilling screws also boast superior holding power and corrosion resistance. The sharp threads and self-tapping design create a tight and secure grip, preventing the screws from loosening or pulling out over time. Furthermore, most self-drilling screws are made from high-quality materials, such as stainless steel or hardened steel, that offer excellent resistance to rust and corrosion. This ensures that the screws maintain their strength and integrity even in demanding environments or harsh weather conditions.

...