CONCEALOR ULP Pancake Head Screws

CONCEALOR ULP is an ultra low profile #10-9 gimlet point self-tapping screw with a pancake head. It fastens standing seam roof clips to wood. It also attaches clip-less nail hem metal roof panels. The sharp gimlet point pierces steel clips up to 24 gauge thick, and pierces up to 20 ga steel. The coarse thread pulls the fastener tight into the wood.

The head is 50% thinner than a standard pancake head, so the panel does not dimple. A special taper adds head strength and countersinks the head into the wood. The thread length is a minimum of 1 in, for full thread engagement. Carbon steel screws are C1022 with a TRI-SEAL long-life coating rated at 1,000 hours of salt spray. That coating can be used in treated and fire treated lumber. A 410 stainless steel version is passivated.

• #10-9 GP x 1-1/8 in: carbon steel, TRI-SEAL coated; 5,000 per box
• #10-9 GP x 1-1/8 in: carbon steel, zinc plated, interior use only; 5,000 per box
• #10-9 GP x 1-1/8 in: 410 stainless steel, passivated; 5,000 per box
• #10-9 GP x 1-5/8 in: carbon steel, TRI-SEAL coated; 3,000 per box
• #10-9 GP x 2-1/8 in: carbon steel, TRI-SEAL coated; 1,500 per box

• Head: ultra low pancake head with taper, .040 in thick, .450 in diameter
• Drive: #2 square recess
• Material: C1022 carbon steel or 410 stainless steel, case hardened to ANSI/ASME B18.6.4
• Carbon steel finish: TRI-SEAL long-life coating, 1,000 hours salt spray
• Stainless steel finish: passivated, 48 hours salt spray
• Zinc plated carbon steel is for interior use only and is not used in treated lumber
• Thread: major diameter .195 in, minor diameter .125 in, stress area .01267 sq in
• Strength (carbon steel): torsional 60 lb-in; tensile 1,520 lbs min.; shear 1,150 lbs min.
• Pullout, average ultimate, #10-9 GP: 383 lbs in 1/2 in plywood; 395 lbs in 5/8 in plywood; 574 lbs in 3/4 in plywood; 136 lbs in 7/16 in OSB; 356 lbs in 19/32 in OSB; 514 lbs in 23/32 in OSB; 813 lbs in 2 x 4 SYP
• Installation: no impact drivers; screw drivers at 2,500 RPM max with torque control or a depth sensing nosepiece
• Packed 250 pcs per bag

• Meets Florida Building Code 1506.6 and R904.5.2 (TRI-SEAL and stainless steel only)