OMG Roofing Products > Roofing Fasteners > Pressure Plates & Pressure Bars > Heavy Duty Roofing Fastener

Heavy Duty Roofing Fastener

The OMG Heavy Duty Roofing Fastener (#14) is designed to secure insulation and single-ply to heavy steel (18 – 22 ga.), wood, and structural concrete decks. They are Factory Mutual and Miami Dade County approved, and come in lengths from 1 1/4 - 24".

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Features & Benefits

  • Heavier shank & thread diameters than most “heavy duty” roofing fasteners.
  • Deep thread for high pullout resistance.
  • Extra sharp spade point for quick installation in new or reroof applications.
  • In concrete applications, fastener may be reversed out of predrilled hole without damaging the deck.

Application

Steel & Wood Decks - The fastener must penetrate steel and wood decks a minimum of 3/4".

Structural Concrete Decks - The fastener must penetrate structural concrete decks a minimum of 1".  Pre-drill a 3/16" pilot hole at least 1/2" deeper than fastener embedment using a carbide tip SDS or straight shank bit.

Drive the fastener until a slight depression is seen around the plate, or with very rigid insulation boards, watch for the plate to dimple.

NOTE: Prior to job-start, contact OMG to perform a pullout test to determine pullout values.  Also, case must be taken not to overdrive the fastener causing subsequent damage to the insulation facer. The fastener must be tight enough so that the plate does not turn.

Coating

OMG CR-10 corrosion resistant coating exhibits less than 15% red rust after 30 Kesternich cycles.  CR-10 coating exceeds F.M. Approval Standard 4470.

Plates & Accessories

Use appropriate steel or plastic plates, depending on the application. See Plates section. On structural concrete decks, use a 3/16" carbide tip SDS or straight shank bit.

SKU Weight Fastener Lengths Packaging Thread Length
CR114 12 lbs 1 1/4" 1000 FULL
CR134 16 lbs 1 3/4" 1000 FULL
CRHD2 18 lbs 2" 1000 FULL
CRHD3 26 lbs 3" 1000 FULL
CRHD4 34 lbs 4" 1000 3"
CRHD5 22 lbs 5" 500 4"
CRHD6 26 lbs 6" 500 4"
CRHD7 30 lbs 7" 500 4"
CRHD8 34 lbs 8" 500 4"
CRHD9 37 lbs 9" 500 4"
CRH10 40 lbs 10" 500 4"
CRH11 44 lbs 11" 500 4"
CRH12 25 lbs 12" 250 4"
CRH14 29 lbs 14" 250 4"
CRH16 37 lbs 16" 250 4"

Physical Data

The data below is constant for each OMG Heavy Duty Roofing Fastener.
Thread Diameter: .245
Shank Diameter: .190
Head Diameter: .435
Head Style: #3 Phillips Truss Head (#3 phillips bit included)
Coating: CR-10

Longer lengths available upon request. Call OMG for information.