Indented Hex Washer Head Self-Drilling Screws - Bright Zinc Plated

The point on a self-drilling screw is designed to efficiently remove material and precisely size the hole for the thread. The length of the drill flute determines the metal thickness that can be drilled. Due to their need to drill and tap into various materials, the standard self-drilling screw is a case hardened heat-treated carbon steel. 

Self drilling Screws are commonly used in the electrical Industry and are typically used in metal to metal and metal to wood applications. They are ideal for attaching metal deck, clips, linear panels and accessories to structural steel or bar joists. They are also know as TEK Screws.

The Indented Hex Washer Head has an indented top surface, six flat sides with a flat washer which projects beyond the sides and provides a flat bearing surface. The washer and hex are formed together as one piece. It provides a larger bearing surface area and is typically used in metal to metal applications. They are ideal for attaching metal deck, clips, linear panels and accessories to structural steel or bar joists. 

• Indented Hex Washer Head
• Carbon Steel
• Zinc Plated
• DIN 7504 K