Additionally, the 13mm size provides a balanced approach to strength and accessibility. It is long enough to secure materials without being cumbersome, making it a preferred choice for various fastening needs. This size is also compatible with a range of power tools, further enhancing its usability.

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.

- Minimal Damage Because they expand rather than rely solely on friction, they minimize the risk of damage to the surrounding substrate.

Conclusion