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Universal 6.0 mm T25 Fastener

The Universal 6.0 mm T25 Fastener is designed to secure insulation and single-ply membrane to steel 1.25 to 0.75 mm steel, wood and structural concrete decks. It is available in lengths from 50 to 305 mm.

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CE Approval
Features & Benefits

Features & Benefits

  • Heavier shank and thread diameters for maximum strength.
  • Deep thread for high pullout resistance.
  • Extra sharp drill point for quick installation in new or reroof applications.
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 pull test 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.

Technical Data

Technical Data

The data below is consistent for each OMG Universal 6.0 mm Fastener.

Thread Diameter:  6 mm
Shank Diameter:  4.6 mm
Head Diameter:  11 mm
Head Style:  T25 Truss Head

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

Packaging Info

Packaging Info

Cat. No. Length (mm) Thread (mm) Packaging Quantity Weight (Kg)
HDSL50B 50 FULL 1000 8.2
HDSL75B 75 FULL 1000 11.2
HDSL100B 100 75 1000 14.6
HDSL125B 125 100 1000 17.8
HDSL150B 150 100 1000 21.2
HDSL175B 175 100 500 12.5
HDSL200B 200 100 500 14.2
HDSL255B 255 100 500 16.2
HDSL305B 300 100 500 21.1