12mm hex head bolt

The head of a self-drilling decking screw is often designed with a star or square drive, which allows for better torque transfer and reduces the chances of strippingself drilling decking screws. The countersunk head, combined with a washer-like ribbed collar, ensures a flush finish, enhancing the overall appearance of the deck. This attention to detail is what sets self-drilling decking screws apart from standard screws, contributing to a more professional and polished look.

...

Self-drilling screws have a sharp point at the tip, designed to pierce through metal, wood, or plastic without requiring pre-drilled holes. This feature significantly reduces installation time and effort, thereby increasing efficiency on the job site. The thread of these screws is specifically designed to cut into the substrate, providing a strong and secure hold. They are particularly useful in situations where speed and convenience are paramount, such as in the assembly of furniture, automotive parts, or even in home renovation projects They are particularly useful in situations where speed and convenience are paramount, such as in the assembly of furniture, automotive parts, or even in home renovation projects They are particularly useful in situations where speed and convenience are paramount, such as in the assembly of furniture, automotive parts, or even in home renovation projects They are particularly useful in situations where speed and convenience are paramount, such as in the assembly of furniture, automotive parts, or even in home renovation projectsnylon head self drilling screws.

...