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Triangle Fastener Gains FM Approval For BLAZER 3 Drill Screws

TFC-Blazer-3Pittsburgh, PA – Triangle Fastener Corporation (TFC) has announced FM approval for their ¼-14 BLAZER 3 Drill Screws in carbon steel. The FM approval is for screw attachments per classes 4471 (Panel Roofs) and 4881 (Exterior Wall Systems). These screws are provided with TRI-SEAL® long-life finish and are approved in lengths up to 11”. 

The listing can be found at, or by visiting the FM RoofNav or Approval Guide website.

BLAZER® Drill Screws are specified by metal roof and wall panel manufactures, including producers of insulated metal panels (IMP).

About Triangle Fastener Corporation


Triangle Fastener Corporation 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.  TFC has 24 locations. It provides technical assistance and offers an inventory management program. For more information, contact TFC at 800-486-1832 or visit

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