Package Quantity: 250 per box
Price: $691.85
Item #OMG-CRH18
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Description
The OMG CRH18 is an 18-inch #14 heavy duty roofing fastener designed for the thickest insulation and membrane assemblies on steel, wood, and concrete decks. It uses a deep thread profile for exceptional pull-out strength. The 30° spade point ensures fast penetration, and the CR-10 coating provides superior corrosion resistance.
Key Features:
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Deep threads engineered for maximum pull-out resistance
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30° spade point for rapid substrate penetration
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CR-10 corrosion-resistant coating protects against rust
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#3 Phillips truss head compatible with roofing screw guns
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18-inch length for extra-thick roofing assemblies
Specifications
- SKU / Model: CRH18
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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
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Length: 18 in (457 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: 3⁄16 in (5 mm), drilled at least ½ in (13 mm) deeper than embedment
How To
- Determine required fastener length by summing assembly thickness plus embedment depth.
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Drill a 3⁄16 in (5 mm) pilot hole at least ½ in (13 mm) deeper than embedment.
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Position the fastener so its head sits flush with the surface of insulation, plate, or membrane.
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Drive using a #3 Phillips bit until a slight depression forms around the plate; do not overdrive.
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Confirm that insulation and plates are flat and secure.
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Conduct representative pull tests to ensure anchorage performance.
FAQs
Q: What is the benefit of CRH18 compared to shorter fasteners?
A: CRH18 allows secure attachment through extremely thick insulation systems while meeting embedment requirements.
Q: What coating is applied to CRH18?
A: It uses CR-10, OMG’s corrosion-resistant coating standard for heavy duty roofing fasteners.
Q: What substrates are supported?
A: It can be used in steel, wood, and structural concrete decks with proper embedment and pilot drilling.
Q: How many fasteners are in each box?
A: 500 per box.
Q: Are pull tests necessary with CRH18?
A: Yes, pull tests are required to confirm performance in the intended substrate.
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