Triangle Fastener Corp., Pittsburgh, announced their 1/4-14 DP3 CONCEALER Pancake Head Screw is now FM approved for wall fastening per FM Approval Standard 4881-Class 1 Exterior Wall Systems.

TFC developed 1/4-14 DP3 CONCEALER Pancake Head Screw specifically to attach insulated metal panels (IMPs).

  • The screw’s unthreaded section eliminates jacking of the insulated panel during face fastening.
  • It has a #3 square recess drive that provides stability during installation
  • Its large diameter pancake head increases pullover strength heads compared to smaller diameter heads.
  • The screws are TRI-SEAL coated for superior corrosion protection.

For more information, visit the TFC website at