Package Quantity: 500 per box
Price: $184.89
Item #OMG-CRHD6B
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Description
The OMG CRHD6B is a 6-inch heavy duty roofing fastener in the #14 series designed to secure insulation and membrane to steel, wood, and concrete decks. It features deep thread geometry and a sharp spade-type point for rapid penetration. The fastener is coated with OMG’s CR-10 corrosion-resistant finish and is FM and Miami-Dade approved.
Key Features:
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Deep threads provide high pull-out resistance and secure grip in roofing substrates
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Sharp 30° spade point allows fast penetration into steel, wood, or concrete decks
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CR-10 corrosion resistant coating meets FM 4470 requirements and reduces red rust formation
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#3 Phillips truss head design for compatibility with common screw guns
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6-inch length allows for attachment through insulation plus substrate
Specifications
- SKU / Model: CRHD6B
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Thread diameter: 0.245 in (6.22 mm)
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Shank diameter: 0.190 in (4.82 mm)
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Head diameter: 0.435 in (11.04 mm) truss Phillips #3
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Thread pitch: 10 threads per inch
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Point type: 30° spade point
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Coating: CR-10 corrosion-resistant coating, meets FM 4470 / ETAG / EAD requirements
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Length: 6 in (150 mm)
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Threaded length: 4 in (102 mm)
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Minimum embedment (steel decks): ¾ in (20 mm)
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Minimum embedment (wood decks): 1 in (25 mm)
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Minimum embedment (concrete decks): 1 in (25 mm)
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Pilot hole size: 3⁄16 in (5 mm), drilled at least ½ in (13 mm) deeper than embedment
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Weight per box: ~26 lbs (11.79 kg)
How To
- Determine required fastener length by summing membrane + insulation thickness plus required minimum embedment.
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Drill a pilot hole (3⁄16 in / 5 mm) at least ½ inch deeper than embedment depth.
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Position the fastener so the head is flush with the insulation/membrane surface.
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Drive with a screw gun using a #3 Phillips bit, stopping when a slight depression appears around the plate (do not overdrive).
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If used with insulation plates or membranes, ensure the plate is flat and secure before full drive.
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Perform periodic pull tests to verify anchorage performance.
FAQs
Q: What is the purpose of the CR-10 coating on CRHD6B?
A: The CR-10 coating provides corrosion resistance and meets FM 4470 and ETAG corrosion cycle requirements, reducing red rust formation.
Q: In what substrates can CRHD6B be used?
A: It is suitable for steel decks, wood decks, and structural concrete when pilot drilled.
Q: How many fasteners come in a box?
A: 500 per box.
Q: What size pilot hole is required?
A: A 3⁄16 inch (5 mm) pilot hole should be drilled at least ½ inch deeper than the embedment requirement.
Q: Should I perform pull tests for this fastener?
A: Yes, pull tests are recommended to validate substrate conditions and anchorage performance.
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