#8 x 2-1/2 in. Star Drive Composite Trim Head Screw (100-per Pack)
- GRK composite RT decking screws for composite and PVC decking
- GRK composite RT Screws for exterior composite window trim
- GRK composite RT screws for composite and vinyl fencing
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Product Details
About This Product
GRK Fasteners #8 x 2-1/2 in. RT Trim Screws (100 per Pack) are Climatek coated for corrosion resistance and suitable for composite decking applications. Small heads, a W-cut thread design and Zip-Tip, preventing material from splitting. No pre-drilling is required. The small diameter head allows for a clean finish.
Highlights
- Use for composite decks and trim applications
- Climatek indoor/outdoor coating provides corrosion resistance (ICC-ES AC257 code approved for use in treated lumber)
- Small screw head with code approval for structural performance
- Zip-Tip provides a fast bite, eliminating pre-drilling for single step installation
- W-Cut threads allow for low torque and fast drive
- Trim head allows for a clean look
- Precision Fit Recessed Star Drive creates zero stripping with 6 points of contact
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- Note: product may vary by store
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Product Information
Specifications
Dimensions
Screw Length | 2-1/2 in |
|---|---|
Size | #8 |
Details
Drive Style | Torx |
|---|---|
Fastener Color | Brass |
Fastener Material | Carbon Steel |
Fastener Plating | Polymeric Zinc |
Fastener Type | Composite Deck Screws |
Features | ACQ Rated, Self Tapping |
Head Style | Trim Head |
Interior/Exterior | Exterior, Interior |
Measurement System | Inches |
Package Quantity | 100 |
Product Weight (lb.) | 0.81 lb |
Returnable | 90-Day |
Thread Style | W-Cut Thread |
Warranty / Certifications
Manufacturer Warranty | No |
|---|
Questions & Answers
can it be used to screw into metal studs
HI there - thank you for contacting us. GRK screws have specially designed features for wood-to-wood attachments with no pre-drilling. Applications using other materials are outside of the intended use of this product. For questions regarding fastening in your application, we recommend contacting a licensed professional engineer to evaluate. Please feel free to call us at (800)222-6990 or email us at grk@itwbrands.com, if you have any questions.
Can these be countersinked?
Thank you for contacting us. The small head diameter of the standard Fin/ Trim will bury into wood cleanly. The reverse thread or RT version bores a slightly larger hole to prevent mushrooming with composite materials.
Will these screws cut into metal studs?
Hi there - thank you for contacting GRK Fasteners. GRK screws have specially designed features for wood-to-wood attachments with no pre-drilling. Applications using other materials are outside of the intended use of this product. For questions regarding fastening in your application, we recommend contacting a licensed professional engineer to evaluate. Thank you.
What size torque bit is required
Thank you for contacting us. The #8 trim screws require a T-10 Torx bit to install. There is one 1" bit included in each carton. Hope this helps.
How are you supposed to remove these if a board needs to be replaced? Trying to unscrew them just makes them dig deeper!
Hi, Isaac. Since it’s an RT screw with the reverse thread under the head, you should be able to get the screw to start backing out if you slowly try to start the screw clockwise (install direction) while putting some weight on the board near the screw. Please feel free to call us at (800) 222-6990 or email us at grk@itwbrands.com for more assistance.
Can these be used for sheet siding?
Hi there, thank you for your interest in our RT Composite screws. We need a few more details about your specific application as we want to ensure we are providing the best recommendation. Can you please reach our to our experts either by call or email? Please feel free to call us at (877) 489-2726 or email us at CS@itwbrands.com. There we will gather the necessary specs to recommend the product you will need.
how does climatek coating compare with grip rite primeguard plus composite deck screws?
Hi there, our Climatek coating is AC257 code approved for use in treated lumber, and provides corrosion resistance. For more information on which product may be best for your application please feel free to call us at (877) 489-2726 or email us at CS@itwbrands.com.
I am looking to use Veranda pvc lumber as fascia boards on my home. I am a bit concerned about the small ?trim? head holding well in storms. Also, if they are okay for my application, what is the number and spacing recommended for a 7 1/4x8? board?
Hi, I'm Andrew Gibson. We recommend contacting a local, licensed engineer to determine the appropriate product and spacing for your application.
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Compare Key Features
Product Snapshot | |||
|---|---|---|---|
Great for homeowners looking for corrosion-resistant screws, making composite deck installation easier. These screws are perfect for upgrading your outdoor space with durability and a clean, professional look. | Great for cabinet construction, featuring zip-tip for no pre-drilling and star drive to eliminate stripping. | Ideal for cabinet installations, these screws offer a flush fit and eliminate pre-drilling. Built for strength and durability, ensuring a secure and long-lasting hold. | Great for homeowners looking for corrosion-resistant screws, making deck and trim installation easier. These self-tapping screws eliminate pre-drilling and reduce wood splitting. |
Length | |||
2-1/2 in | 2-3/4 in. | 2 in | |
Diameter | |||
#8 | #8 (4 mm) | #8 | |
Thread Type | |||
W-Cut | W-Cut | W-Cut Thread | W-Cut Thread |
Material | |||
Carbon Steel | Carbon Steel | Carbon Steel | Carbon Steel |
Head Type | |||
Trim Head | Washer Head | Washer Head | Trim Head |
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