insulation nails with washers

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.

...

2self drilling lag screws. Securing Metal Components In industrial settings, drilling lag screws are commonly used to attach metal components such as pipes, beams, and brackets. Their strength and durability make them ideal for supporting heavy loads and withstanding harsh environmental conditions。

...