double end right and left hand threaded rods

In conclusion, self-drilling screws for 1/4 steel offer a powerful and efficient solution for various industrial and construction tasks. Their ability to drill and fasten simultaneously, coupled with their strength and durability, makes them a go-to option for professionals. However, proper selection and use, including choosing the right material, coating, length, and applying appropriate torque, are essential to maximize their benefits and ensure a successful project outcome.

...

The 4 in the sequence pertains to the thread count per inch (TPI). A higher thread count usually equates to better holding power and faster insertion A higher thread count usually equates to better holding power and faster insertion A higher thread count usually equates to better holding power and faster insertion A higher thread count usually equates to better holding power and faster insertion6 1 1 4 drywall screws. The 4 TPI on these drywall screws allows for efficient installation while providing a strong grip, reducing the chances of the drywall pulling away from the frame.

...