OMG Roofing Products > Roofing Fasteners > Pressure Plates & Pressure Bars > Purlin Fastener

Purlin Fastener

The OMG Purlin Fastener is designed for attaching single-ply membrane systems to structural steel purlins (12-18 gauge) in standing seam metal roof retrofit applications. The OMG Purlin Fastener has a 3/4" drill point which allows the screw to quickly drill through the purlin before the threads engage into the standing seam metal roof. This greatly reduces point burnout and breakage as well as eliminates "jacking" between purlin and standing seam metal. The OMG Purlin Fastener is available in 3 3/4" to 8" lengths. The OMG Purlin Fastener is Factory Mutual approved.

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Features & Benefits

  • The OMG Purlin Fastener drills through up to 12 gauge steel in seconds.
  • The 3/4" drill point allows the fastener to be drilled through the purlin before the threads engage into the the standing seam metal roof.
  • Low profile hex head has a smooth surface to ensure that there is no damage to the membrane.
  • F.M. and Dade County approved.

Application

The OMG Purlin Fastener must penetrate the purlin a minimum of 1". This ensures a minimum of 1/4" thread penetration into the structural member. Using a screw gun with a maximum of 1800 RPM, drive the fastener through the purlin until a slight depression is seen around the plate.

Note: Caution should be taken not to overdrive the fastener causing stress plate surface to deflect more than 1/16". Prior to job bid, contact OMG to visit the job site and inspect the deck.

Coating

CR-10

Plates & Accessories

Use 2" appropriate stress plate. For best installation results, use a high torque, low RPM drill. See Accessories section.

SKU Weight Fastener Lengths Packaging Thread Length
PUR334 13 lbs 3 3/4" 500 FULL
PUR434 16 lbs 4 3/4" 500 3"
PUR534 20 lbs 5 3/4" 500 3"
PUR700 24 lbs 7" 500 3"
PUR800 27 lbs 8" 500 3"

Physical Data

Thread Diameter: .210
Head Diameter: .435
Head Style: 1/4" Hex Head
Coating: CR-10