Johns Manville Polymer Plates for Polymer Auger Fasteners, 2 in. or 3 in. Round, Galvalume-Coated Steel
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Johns Manville Polymer Plates for Polymer Auger Fasteners, 2 in. or 3 in. Round, Galvalume-Coated Steel
Johns Manville Polymer Plates are Galvalume-coated steel stress plates designed to lock into the head of JM Polymer Auger Fasteners for attaching insulation and membranes. Choose 2 in. or 3 in. round plate sizes, each supplied in a box of 1,000. Pair them with JM Polymer Auger Fasteners on cementitious wood fiber or gypsum decks.
Key Features:
- Locks Into Head: Plates are designed to lock into the fastener head of JM Polymer Auger Fasteners.
- Galvalume-Coated Steel: Plates are made of Galvalume-coated steel for durable performance in roofing assembly attachment.
- Two Plate Sizes: Available in 2 in. (50.8 mm) or 3 in. (76.2 mm) round plates.
- Bulk Box Count: Each sell unit is a box of 1,000 plates for large commercial jobs.
- Deck Compatibility: Intended for insulation and membrane attachment into cementitious wood fiber or gypsum deck types.
- Grey Plate Finish: Plates are grey, pairing with black glass-reinforced nylon Polymer Auger Fasteners.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Johns Manville |
| Sell unit | 1 box of 1,000 plates |
| Product line | JM Polymer Plates (used with JM Polymer Auger Fasteners) |
| Available sizes | 2 in. round (1000/Box), 3 in. round (1000/Box) |
| Material | Galvalume-coated steel |
| Color / finish | Grey plates (fasteners are black) |
| Diameter | 0.675 in. screw (fastener gauge) |
| Plate size | 2 in. (50.8 mm) or 3 in. (76.2 mm) round |
| Head | 1 in. (25.4 mm) diameter, 1/4 in. (6 mm) square drive (fastener head) |
| Fastener material | Glass-reinforced nylon polymer |
| Intended use | Attachment of insulation and membranes on commercial low-slope roofs |
| Deck types | Cementitious wood fiber or gypsum |
| Pack quantity | 1000 per box |
Coverage & How Much You Need:
One box of 1,000 plates supports 1,000 fastener attachment points; plates per square depends on the insulation fastening pattern specified for the wind uplift zone.
Fit and Compatibility:
Designed for use with Johns Manville Polymer Auger Fasteners, which have a 1 in. diameter head and internal 1/4 in. square drive. Sold separately from the fasteners; select the 2 in. or 3 in. round plate per project fastening specifications.
Frequently Asked Questions (FAQ):
Q: What is included in one unit?
A: One box containing 1,000 Galvalume-coated steel plates in your chosen 2 in. or 3 in. round size. Fasteners are sold separately.
Q: Do I need the JM Polymer Auger Fasteners to use these plates?
A: Yes. The plates are designed to lock into the head of JM Polymer Auger Fasteners, which have a 0.675 in. diameter screw and 1/4 in. square drive.
Q: Which plate size should I choose?
A: Choose 2 in. or 3 in. round according to your insulation fastening pattern and wind uplift requirements; 3 in. plates offer more bearing area over the insulation.
Q: What fastener drive do they work with?
A: The mating fasteners use an internal 1/4 in. (6 mm) square drive, so a 1/4 in. square driver bit is used for installation.
Q: What decks are these intended for?
A: JM lists cementitious wood fiber and gypsum deck types for this fastening system.
Q: Are the plates rust resistant?
A: They are Galvalume-coated steel, a zinc-aluminum coating commonly used for corrosion resistance in roofing applications.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Match plate size to your attachment pattern: 3 in. round plates give greater bearing over insulation for higher uplift zones, while 2 in. plates suit standard patterns. Always use JM Polymer Auger Fasteners with these plates so the stress plate locks into the fastener head as designed. Confirm fastener density and plate size with the project's specified JM system and local wind requirements before ordering.
Follow the roof system manufacturer's fastening patterns and local wind uplift codes; wear eye protection and gloves when driving fasteners on commercial roofs.
Order Johns Manville Polymer Plates in 2 in. or 3 in. round, 1,000 per box, for your next insulation and membrane attachment job.
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