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Triangle Fastener Screw Gains FM Approval For Use With Exterior Wall Systems


Pittsburgh, PA – Triangle Fastener Corporation (TFC) has announced FM Approval for their ¼-14 DP3 CONCEALOR Pancake Head Screw for wall fastening, per FM Approval Standard 4881 – Class 1 Exterior Wall Systems.

TFC developed the ¼-4 DP3 CONCEALOR Pancake Head screw specifically to attach insulated metal panels (IMPs). Features and benefits include:

An unthreaded section to eliminate the potential for jacking of the insulated panel during face fastening.

A #3 square recess drive that provides stability during installation.

A large-diameter pancake head that increases pullover strength compared to smaller-diameter heads.

A TRI-SEAL coating for superior corrosion protection.

More information about the screws can be found on the TFC website at

About Triangle Fastener Corporation


Triangle Fastener Corporation is a leading provider of standard and specialty fasteners, sealants, and tools for metal construction industries. They have 23 locations and can provide job-site assistance, fastener recommendations, and product development. For more information visit the TFC website at For product samples call 800-486-1832.

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