Stainless Steel Sealing Washer Self Drilling Tek Screws.

• Hex Washer Head TEKS are Used for Self Drilling in Thin Gauge Metals.
• They are Used Primarily in the Solar Bracket Panel Mounting, Cable Clips.
• Screws are Made from Grade 410 Bright Hardened Stainless Steel Used in Self-Drilling (Tek) Screws Intended for Steel Substrates is a Martensitic Alloy Containing 12% Chromium But No Nickel.
• Sealing Washers are made out of 18-8 / 304 Stainless Steel and Neoprene Backed Washers Are Used to Create a Watertight Seal.