fully threaded hex head bolts

Lag screws, typically used for heavy-duty applications like securing wooden beams or attaching metal to wood, have traditionally required a separate drilling step before the screwing process. However, with the advent of self-drilling versions, this dual-step process is consolidated into one swift action. The self-drilling tip, often featuring a sharp point and flutes, cuts through material effortlessly, whether it's wood, metal, or even concrete, making them highly versatile.

...

The versatility of self-tapping screws with neoprene washers makes them suitable for various industries. In the construction sector, they are commonly used for securing roofing materials, metal panels, and insulation systems. Their usage in automotive manufacturing includes applications such as attaching body panels and securing engine components. Additionally, these fasteners are ideal for marine applications, where resistance to water and salt is paramount.


...