Fastening Systems - Drill-Tec Super Extra Heavy Duty 21

Drill-Tec™ Super Extra Heavy Duty #21

Roofing Fastener

The Drill-Tec™ Super Extra Heavy Duty #21 Roofing Fastener is a specialized, high performance fastener designed to secure single-ply membrane to 22 gauge metal decks or lighter.


Specification

The fastener will be a Drill-Tec™ Super Extra Heavy Duty #21 Roofing Fastener with a thread diameter of .325. The fastener must have 14 threads per inch and a drill point. Also, the fastener must be heat treated per specification OMG-1. The fastener must be made in U.S.A. coating requirements

The fastener will be coated with the Drill-Tec CR-10 corrosion resistant coating. When subjected to 30 Kesternich cycles (DIN 50018), the fastener must show less than 15% red rust and surpass Factory Mutual Approval Standard 4470.


Application

The Drill-Tec Super Extra Heavy Duty #21 Roofing Fastener should always be tested on-site by a GAF representative to determine performance and proper installation procedure. Call GAF to schedule testing.

Note: Make sure not to overdrive the fastener. Fastener must be tight enough so that the plate doesn’t turn. Factory Mutual requires that the fastener penetrates the steel deck at the top flute.


Physical Data

Head Diameter: .500
Head Style: #3 Phillips Truss
Thread Diameter: .325

Documents

All documents are U.S. English unless otherwise noted

Commercial Roofing EagleView Commercial Property Owners Portal Architects And Specifiers




   





 
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