Package Quantity: 500 per box
Price: $307.07
Item #OMG-CRHD8B
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Description
The OMG CRHD8B is an 8-inch #14 heavy duty roofing fastener engineered for securing insulation and membranes to common roofing decks. It features deep thread geometry for strong pull-out resistance. A 30° spade point aids fast starts and penetration, and the CR-10 finish provides corrosion resistance.
Key Features:
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Deep thread profile for high pull-out resistance
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30° spade point for rapid penetration and fast starts
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CR-10 corrosion-resistant coating for durability
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#3 Phillips truss head compatible with standard screw guns
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8-inch length accommodates thicker assemblies
Specifications
- SKU / Model: CRHD8B
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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: 8 in (200 mm)
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Minimum embedment (steel): ¾ in (20 mm)
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Minimum embedment (wood): 1 in (25 mm)
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Minimum embedment (concrete): 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 using assembly thickness plus minimum embedment.
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Drill a 3⁄16 in (5 mm) pilot hole at least ½ in (13 mm) deeper than the embedment depth as required.
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Place the fastener so the head sits flush with the plate, insulation, or membrane surface.
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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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Verify plates and boards are flat and secure, then perform representative pull tests.
FAQs
Q: What corrosion protection does CRHD8B use?
A: CR-10 coating provides corrosion resistance suitable for roofing environments.
Q: Which substrates are compatible?
A: Steel, wood, and structural concrete when pilot drilled and embedded to the minimum requirements.
Q: How many fasteners are in each box?
A: 500 per box.
Q: What pilot hole size is recommended?
A: 3⁄16 inch (5 mm), drilled at least ½ inch deeper than the embedment depth.
Q: Do I need to conduct pull tests?
A: Yes, pull tests are recommended to confirm anchorage in the actual substrate.
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