SKU: 41423504049

GAF Drill-Tec Polymer GypTec Fasteners, 2-1/2 in, Box of 500

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Description

GAF Drill-Tec Polymer GypTec Fasteners, 2-1/2 in, Box of 500GAF Polymer GypTec Roofing Fasteners, 2 1 2 in Glass filled nylon auger fasteners engineered to secure insulation and single ply membrane to gypsum and cementitious wood fiber decks. A 1 4 in internal square drive and wide buttress thread deliver fast installation and strong pull out resistance; designed to thread into the substrate without penetrating the deck. Key Features: Purpose Built for Gypsum CWF: Secures insulation and single ply membrane to

GAF Polymer GypTec Roofing Fasteners, 2-1/2 in

Glass-filled nylon auger fasteners engineered to secure insulation and single-ply membrane to gypsum and cementitious wood fiber decks. A 1/4 in internal square drive and wide buttress thread deliver fast installation and strong pull-out resistance; designed to thread into the substrate without penetrating the deck.


Key Features:

  • Purpose-Built for Gypsum/CWF: Secures insulation and single-ply membrane to gypsum and cementitious wood fiber decks
  • Fast, Easy Installation: Internal 1/4 in square drive (driver bit included) speeds application
  • High Holding Power: Wide buttress thread design enhances pull-out resistance
  • Plate Compatibility: Use with 3 in steel plates (insulation) and 2 in steel plates (membrane)
  • Durable Construction: Glass-filled nylon with 1 in head; tabs lock plate to fastener head

Specifications Table:

Specification Details
Manufacturer Part Number 456G
Product Number GAFGYPFST25
Length 2-1/2 in
Head Diameter 1 in
Drive Type Internal 1/4 in square (driver bit included)
Material Glass-filled nylon
Thread Type Wide buttress thread
Plate Compatibility 3 in steel plates (insulation); 2 in steel plates (membrane)
Intended Substrates Gypsum and cementitious wood fiber (Insulrock, Permadeck, Tectum, etc.)
Approvals FM Approved; Miami-Dade County Approved
Packaging Box of 500
Unit of Measure CTN
Style Category Nails, Screws & Fasteners

Frequently Asked Questions (FAQ):

Q: What materials can these fasteners be used with?
A: They are designed for gypsum and cementitious wood fiber decks (e.g., Insulrock, Permadeck, Tectum) for securing insulation and single-ply membranes.


Q: Do the fasteners penetrate the deck?
A: No. They are designed to thread into the substrate without penetrating the deck.


Q: What driver is required?
A: An internal 1/4 in square drive is used, and a driver bit is included.


Q: Which plates are compatible?
A: Use 3 in steel plates for insulation attachment and 2 in steel plates for membrane attachment.


Q: Are there approvals or ratings?
A: Yes, they are FM Approved and Miami-Dade County Approved.


Sleek Precision for High-Performance Roof Assemblies

This fastener brings an elegant efficiency to commercial roofing—purposeful, minimal, and engineered to perform. I love the bold buttress thread that feels sculptural while delivering uncompromising hold. Pair it with clean steel plates for a crisp, orderly fastening pattern that reads as considered craftsmanship. It’s a quiet essential that elevates the integrity and luxury of a well-detailed roof system.


Choose GAF Polymer GypTec Fasteners today for faster installs and reliable hold on gypsum and cementitious wood fiber decks.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 41423504049

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Paul Andreini
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★★★★★ 5
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I have lusted after this watch for four months. I first tried on a similar model (stainless steel band with a green face) in a local jewelry shop (Spitz Jewlers, Walnut Creek, CA, USA). It was "love at first sight," even if I didn't love the white lines on the face from 12-6 and 3-9. At the time, the MSRP was $775. The MSRP has since increased to $795. But I bought this beauty on Amazon.com for only $524.99; after applying the cash-back from my Prime credit card, this watch costs only $498.75. This was "the offer that I could not refuse," to quote from "The Godfather." Accuracy could be better: after only a few days, it is now 7 seconds behind my phone (to which I set my new watch). But I don't really care about that all that much. This is why I rated "accuracy" at 4 stars, but my overall review is 5 stars. My video shows the date changing suddenly at 11:59:59pm, just how I want it; in another photo, you can see that my Seiko changes the date more slowly, which I do not like. This watch is absolutely phenomenally beautiful. If you're on the fence over whether to make this purchase, then I would say "go for it!" You will not find a prettier, more accurate watch at a lower price in ANY store in the entire USA.
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Reviewed in the United States on April 28, 2023
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pradeepkanth
Louisville, US
★★★★★ 4
Classy and sporty. Great value!
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Excellent watch for the price. Looks sporty and dressy. More towards dress watch. Blue is dynamic. Strongly recommend blue for sporty feel. I was thinking of aqua terra. This come close to it with a price less than what i would have paid my state tax for omega aqua terra. My only concern is bracelet which i feel kind of OK. Better bracelet design would have made this watch much superior. 21 lug width is awful. Other than that, nothing to complain.
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Reviewed in the United States on July 13, 2020
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Tim Shepherd
Boise, US
★★★★★ 5
Stunning Gentleman's Watch
Color: Grey
This is my second Tissot watch. It's quite stunning in person. The online photos don't do it justice. It has the look and feel of a much more expensive gentleman's watch which makes this purchase a great bargain. Tissot is a great reliable Swiss made watch brand. My first Tissot watch which is probably more than 20 years old still runs great. Very pleased with this purchase.
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Reviewed in the United States on October 16, 2025
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L.Lopez
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★★★★★ 5
Good Tissot Watch
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Arrived on time, in its original box, include a 2 year international warranty, into the box include a book with the Tissot brand history in Switzerland. Algo a second book with a whole catalog of Tissot watches men and women. The watch looks better when you put in on your wrist. The “naval” blue really gives the clock a classy look. The stainless steel workmanship is really good, the metal is bright and perfectly polished. The metal wristband quality is very good, did not have any problem to adjust the size , I went to my preferred clock workshop for this job, they extracted a few pieces of the band to fit to my small wrist size. Have to get used to the butterfly latch, but after a few days, now I learned to open and close it without any effort. The clock it’s very accurate, I’ve been using my Tissot for near a month and it just increased a few seconds per week. I do the setup and check accuracy with my pc clock. In short, It”s a good value watch, nice, good looking, accurate.
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Whiting, US
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Fantastic.
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