The product is LB 1/4x3 ZN SD Screw. Easy and simple use kit. The product is manufactured in China.. Elegant design and finish.
These self-drilling screws are used in wood, fiberglass and metal, and they possess a drill point enabling it to drill in its own hole in thin gauge steel. The sharp threads create their own mating thread when drilled into the material. No pre-drilled pilot holes necessary.