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GAF Drill-Tec Polymer GypTec Fasteners, Glass-Filled Nylon Auger, 4" to 7"
Regular price $410.00Orders start at $399 — combine any items to reach the minimum. Learn more
GAF Drill-Tec Polymer GypTec Fasteners, Glass-Filled Nylon Auger, 4" to 7"
GAF Drill-Tec Polymer GypTec Fasteners are glass-filled nylon auger fasteners with a 1 in. head that secure insulation and single-ply membranes to gypsum and cementitious wood fiber decks. Available in 4 in. to 7 in. lengths, boxes of 500. One box per order unit.
Key Features:
- Gyp deck fastening: Designed to secure insulation and single-ply membranes to gypsum and cementitious wood fiber decks such as Insulrock, Permadeck, and Tectum.
- Strong pull-out: Thread design and large root diameter increase pull-out resistance and side-shear strength.
- Corrosion-free: Glass-filled nylon eliminates corrosion, thermal bridging, and condensation.
- High tensile: Glass-filled nylon construction yields high tensile strength.
- 1 in. head: Wide 1 in. head provides ample bearing on membranes and plates.
- Bulk boxes: Available in boxes of 500 fasteners in multiple lengths.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | GAF |
| Sell unit | 1 box of 500 fasteners |
| Product line | Drill-Tec |
| Available colors | Mill |
| Available sizes | 4", 5", 5-1/2", 6.5", 7" |
| Material | Glass-filled nylon |
| Head size | 1 in. |
| Pack quantity | 500 per box |
| Length | 4 in. to 7 in. depending on variant |
| Intended use | Fastening insulation and single-ply membranes to gypsum and cementitious wood fiber decks |
| Deck compatibility | Gypsum; cementitious wood fiber (Insulrock, Permadeck, Tectum) |
Coverage & How Much You Need:
Fastener spacing is set by the membrane and insulation system design; a 500-count box covers roughly 166 fastener points at three per board on 4 ft x 4 ft insulation, but always follow the specified pattern.
Fit and Compatibility:
For gypsum and cementitious wood fiber roof decks with GAF Drill-Tec or compatible single-ply membrane systems; verify fastener length against insulation and membrane assembly thickness. Plates and other Drill-Tec components sold separately.
Frequently Asked Questions (FAQ):
Q: What lengths are available?
A: 4 in., 5 in., 5-1/2 in., 6.5 in., and 7 in.
Q: How many come in a box?
A: Boxes of 500 fasteners.
Q: What decks do these fasten to?
A: Gypsum and cementitious wood fiber decks such as Insulrock, Permadeck, and Tectum.
Q: Will they rust?
A: No; glass-filled nylon construction eliminates corrosion.
Q: Why nylon instead of steel?
A: Nylon also reduces thermal bridging and condensation while providing high tensile strength.
Q: What head size do they have?
A: A 1 in. head designed for insulation and membrane attachment.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Match fastener length to deck penetration requirements for your insulation thickness plus membrane assembly. Use these on gypsum and cementitious wood fiber decks rather than steel decks, where a different Drill-Tec fastener is required. The nylon body avoids the rust bleed and thermal bridging that metal fasteners can introduce under reflective membranes.
Verify pull-out and withdrawal capacities against the roof system specification before installation and wear eye protection when driving fasteners.
Stock up on GAF Drill-Tec Polymer GypTec Fasteners for your next gypsum-deck single-ply job.
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