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Johns Manville RetroDriller Fasteners, CR-10 Coated Steel, 4 in., 5 in. and 8 in., 500/Box
Regular price $325.00Orders start at $399 — combine any items to reach the minimum. Learn more
Johns Manville RetroDriller Fasteners, CR-10 Coated Steel, 4 in., 5 in. and 8 in., 500/Box
JM RetroDriller fasteners are designed for attaching single-ply PVC and TPO membrane systems and insulation to structural purlins up to 3/16 in. thick in standing seam metal roof retrofit applications. This line comes in 4 in., 5 in., and 8 in. lengths in boxes of 500, each with a #3 square head and CR-10 coated steel construction.
Key Features:
- Retrofit design: Made for attaching single-ply membrane systems in standing seam metal roof retrofit applications.
- Purlin engagement: Drills into structural purlins up to 3/16 in. thick.
- Corrosion-resistant coating: CR-10 coated steel construction for membrane fastening.
- Square drive head: #3 square head for installation with standard square-drive tools.
- Membrane and insulation: For use with PVC and TPO membranes and insulation.
- Bulk boxes: Supplied 500 fasteners per box in each length.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Johns Manville |
| Sell unit | 1 box of 500 fasteners |
| Product line | RetroDriller Fasteners |
| Available sizes | 4", 5", 8" |
| Material | CR-10 coated steel |
| Head | #3 square head |
| Length | 4 in., 5 in., or 8 in. by variant |
| Deck Types | Structural purlins standing seam metal (up to 3/16 in.) |
| Intended use | Attaching single-ply PVC and TPO membrane systems and insulation in metal roof retrofit |
| Pack quantity | 500 per box |
Coverage & How Much You Need:
Fastener count is set by the membrane fastening pattern required for the wind zone and purlin spacing on the retrofit roof. Divide the total fasteners specified by 500 to determine boxes needed per length.
Fit and Compatibility:
For single-ply PVC and TPO membrane and insulation attachment over structural purlins in standing seam metal roof retrofits. Use with compatible membrane plates per the JM system specification; plates and membranes sold separately.
Frequently Asked Questions (FAQ):
Q: What lengths are available?
A: 4 in., 5 in., and 8 in., each supplied 500 per box.
Q: What are they for?
A: Attaching single-ply PVC and TPO membranes and insulation in standing seam metal roof retrofit applications.
Q: What material are they made of?
A: CR-10 coated steel with a #3 square head.
Q: What purlin thickness can they handle?
A: They are designed for structural purlins up to 3/16 in. thick.
Q: What drive do they take?
A: A #3 square head, so use a #3 square-drive bit or driver.
Q: How many come in a box?
A: Each box contains 500 fasteners.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Verify purlin gauge and spacing before ordering, and pick the length that penetrates the purlin per your JM retrofit specification without protruding through. Drive fasteners square with a #3 square bit, and confirm pull-out values by test fastening on site. For thicker purlins or different deck types, choose a JM fastener designed for that substrate instead.
Fastener driving produces hot chips and sharp shank ends; wear eye protection and gloves, and keep hands clear of the driving point on metal purlins.
Order JM RetroDriller fasteners for your standing seam metal roof membrane retrofit.
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