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RoofGrip® 5.5 mm T25 Fastener

The OMG RoofGrip 5.5 mm T25 Fastener is designed to secure insulation and single-ply membrane to steel 1.25–0.65 mm and wood. It is available in lengths from 40 to 200 mm. The Fastener is Factory Mutual and CE approved.

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FM Approved
CE Approval
Features & Benefits

Features & Benefits

  • Heavier shank and thread diameters than most “standard” roofing fasteners
  • Deep buttress thread design for high pullout resistance
  • Extra sharp drill point for quick installation in new and re-roof steel deck applications.
Technical Data

Technical Data

The data below is constant for each OMG Standard Roofing Fastener.

Thread Diameter:   5.5 mm
Shank Diameter:   4.1 mm
Head Diameter:   11 mm
Head Style:   T25 Truss Head

Gray OMG CR-10 coating passes the corrosion resistant requirements of EAD 030351-00-0402 and FM Approval Standard 4470.

Product Use

Product Use

For steel decks, 20 mm penetration is the minimum allowable. Factory Mutual requires that fasteners penetrate the top flute.

For OSB and plywood, 20 mm penetration through the underside of the board is the minimum allowable. For wood deck (wood beams, wood plank, tongue & groove), 20 mm penetration is the minimum allowable.

Using a screw gun, drive the fastener until a slight depression is seen in the insulation and the plate. On rigid cover boards, care must be taken not to strip the deck. The strength of different roof decks can vary widely and can be adversely affected by moisture and other conditions. Therefore, it is recommended that a fastener pulltest be conducted to help evaluate deck condition and fastener suitability. Call OMG to schedule testing.

Note: Care must be taken not to overdrive the fastener. Fastener must be tight enough so that the plate doesn’t turn. For best results, use a variable speed 0 – 2500 RPM screw gun.

Packaging Information

Packaging Information

Cat. No. Fastener Length (mm) Thread Length (mm) Packaging Quantity Weight (Kg)
RGSL40B 40 Full 1000 5.4
RGSL55B 55 Full 1000 7.2
RGSL75B 75 Full 1000 10.8
RGSL100B 100 75 1000 12.7
RGSL125B 125 75 1000 15.8
RGSL150B 150 100 1000 18.1
RGSL175B 175 100 1000 21.7
RGSL200B 200 100 1000 22.7