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GRK Fasteners RT Trim™ Head Screws
Quick Overview
Fastener Length: 2", 2-1/2" and 3-1/8"
Fastener Material: Climatek™ (gold)
Fastener Size: #8 (4.0 mm) and #9 (4.5 mm)
Fastener Qtys: Bulk Cartons
Fastener Material: Climatek™ (gold)
Fastener Size: #8 (4.0 mm) and #9 (4.5 mm)
Fastener Qtys: Bulk Cartons
Product Description
- All trim applications
- Strong heads and Star head recess
- NO pre-drilling
- Reverse Thread (RT)
- Most composite decks
Bits NOT included with purchase
#8 screws take a #10 bit
#9 screws take a #15 bit
(see related products to the right)
GRK has modified its innovative FIN/Trim™ Head Screw to include reverse threading under the head of the fastener. After extensive testing, GRK has found that the reverse thread on the RT Composite™ Trim™ Head Screw helps the screw disappear beneath the surface of the wood composite material, reducing or eliminating the dimple that sometimes appears when using the FIN/Trim™ Screw.
GRK's RT Composite™ Trim™ Head Screws are ideal for most fine carpentry applications, and are recommended for most composite decking projects and climates. The reverse thread feature is available in sizes from 2" to 3"1/8.
The RT Composite™ Trim™ Head screw's exceptionally small head, along with the W-Cut™ thread design, prevent most material splitting. Pre-drilling is only necessary if the building material's limitations require a pilot hole to be drilled. (Always consult wood supplier's / manufacturer's recommendations)
RT Composite™ Trim™ Head screws come with 1200+ salt spray hours Climatek™ corrosion protection. This will come in very handy when using our Trim™ screws in composite decking.
FOR BEST RESULTS, TRIM™ SCREWS SHOULD BE DRIVEN AT HALF SPEED.
Suggested Uses
Composite Wood and Wood Decking
Window Jambs
Door Jambs
All Trim Applications
- Strong heads and Star head recess
- NO pre-drilling
- Reverse Thread (RT)
- Most composite decks
Bits NOT included with purchase
#8 screws take a #10 bit
#9 screws take a #15 bit
(see related products to the right)
GRK has modified its innovative FIN/Trim™ Head Screw to include reverse threading under the head of the fastener. After extensive testing, GRK has found that the reverse thread on the RT Composite™ Trim™ Head Screw helps the screw disappear beneath the surface of the wood composite material, reducing or eliminating the dimple that sometimes appears when using the FIN/Trim™ Screw.
GRK's RT Composite™ Trim™ Head Screws are ideal for most fine carpentry applications, and are recommended for most composite decking projects and climates. The reverse thread feature is available in sizes from 2" to 3"1/8.
The RT Composite™ Trim™ Head screw's exceptionally small head, along with the W-Cut™ thread design, prevent most material splitting. Pre-drilling is only necessary if the building material's limitations require a pilot hole to be drilled. (Always consult wood supplier's / manufacturer's recommendations)
RT Composite™ Trim™ Head screws come with 1200+ salt spray hours Climatek™ corrosion protection. This will come in very handy when using our Trim™ screws in composite decking.
FOR BEST RESULTS, TRIM™ SCREWS SHOULD BE DRIVEN AT HALF SPEED.
Suggested Uses
Composite Wood and Wood Decking
Window Jambs
Door Jambs
All Trim Applications
Additional Information
| Manufacturer | GRK Fasteners |
| Documentation |
Manufacturer Documentation (446 KB) |





