CONCEALOR DP1 Pancake Head Screws

CONCEALOR DP1 pancake head screws are #14-13 self-drilling screws with a DP1 drill point. They attach to metal, wood and concrete. A buttress thread gives high clamping loads and is specified in many metal roofing systems to attach standing seam roof clips over rigid insulation into metal deck.

The thread has a flat profile that keeps the joint tight. An ordinary tapered thread tends to loosen the joint. The carbon steel screw has a TRI-SEAL coating that gives over 10 times the corrosion resistance of black epoxy coated screws. The stainless version is a 304 stainless steel bi-metal screw, with a TRI-SEAL coating that gives lubricity and minimizes thread roll-over.

• #14-13 DP1: 3/4, 1-1/2, 2, 3, 4, 4-1/2, 5, 6, 7, 8 and 9 in long; carbon steel drills and taps up to 16 ga steel; 304 stainless steel bi-metal drills and taps up to 18 ga steel
• 1-1/2, 2, 3 and 7 in lengths are also available in 304 stainless steel
• Load bearing length runs from .125 in on the 3/4 in screw to 5.875 - 8.250 in on the 9 in screw
• 5, 6, 7, 8 and 9 in screws have a 4-1/2 in thread length
• Steel hardness can affect drill and tap performance and may require predrilling

• Pancake head, .500 in head diameter, .095 in head thickness
• #2 square recess drive
• Carbon steel: C1022 steel with TRI-SEAL coating
• Stainless: 304 stainless steel bi-metal, passivated and coated for lubricity
• TRI-SEAL coated and stainless screws meet Florida Building Code 1506.6 and R904.5.2
• Carbon steel screws can be used in concrete; predrill with a 3/16 in masonry bit
• Impact drivers are not used; screw guns run at 2,500 RPM maximum, variable speed, with torque control or a depth sensing nosepiece