Triangle Fastener Corporation (TFC) announces the addition of two new sizes to its line of SD300™ stainless steel bi-metal self-drilling screws. Now available in a #12 diameter in one-inch and two-inch lengths. They come with a pancake head and #2 square recess and can drill and tap up to .210-inch thick steel or aluminum. They provide exceptional corrosion resistance and ductility, minimizing the chance of screw failure caused by stress corrosion cracking or hydrogen embrittlement.

  • Made of 304 stainless steel for optimal corrosion resistance.
  • Low-profile pancake head is aesthetically pleasing when used in exposed fastener applications. 
  • Screws are TRI-SEAL® coated, which minimizes galvanic corrosion when used in aluminum applications.
  • Great for attaching aluminum materials like framing and ACM panels.

TFC provides a full line of standard and specialty fasteners, sealants, flashings, and tools for metal building, metal roofing, low slope roofing, steel decking, steel framing, and miscellaneous cladding materials. Contact TFC at 800-486-1832 or visit their website at