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Torx Flat Head Screws for Wood
With more points of contact than Phillips-, slotted-, and square-drive screws, you can firmly press these Torx-drive screws into wood without stripping them or damaging the recess—their threads create a tight hold. All are beveled under the head for use in countersunk holes. Made of zinc-plated steel, they resist rusting in wet environments. To prevent splitting, drill a pilot hole slightly smaller than the screw. Length is measured from the top of the head.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Drive Size | Softwood Drill Bit Size | Hardwood Drill Bit Size | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | |||||||||||
No. 6  | |||||||||||
| 1/2" | 0.279" | 0.083" | T10 | 1/16" | 5/64" | 18 | Partially Threaded | 3/8" | 100 | 0000000 | 00000 |
| 3/4" | 0.279" | 0.083" | T10 | 1/16" | 5/64" | 18 | Partially Threaded | 1/2" | 100 | 0000000 | 0000 |
| 1" | 0.279" | 0.083" | T10 | 1/16" | 5/64" | 18 | Partially Threaded | 3/4" | 100 | 0000000 | 0000 |
No. 8 | |||||||||||
| 1/2" | 0.332" | 0.1" | T15 | 5/64" | 3/32" | 15 | Partially Threaded | 3/8" | 100 | 0000000 | 0000 |
| 3/4" | 0.332" | 0.1" | T15 | 5/64" | 3/32" | 15 | Partially Threaded | 1/2" | 100 | 0000000 | 0000 |
| 1" | 0.332" | 0.1" | T15 | 5/64" | 3/32" | 15 | Partially Threaded | 3/4" | 100 | 0000000 | 0000 |
| 1 1/4" | 0.332" | 0.1" | T15 | 5/64" | 3/32" | 15 | Partially Threaded | 1" | 100 | 0000000 | 0000 |
No. 10 | |||||||||||
| 3/4" | 0.385" | 0.116" | T20 | 3/32" | 7/64" | 12 | Partially Threaded | 1/2" | 100 | 0000000 | 00000 |
| 1" | 0.385" | 0.116" | T20 | 3/32" | 7/64" | 12 | Partially Threaded | 3/4" | 100 | 0000000 | 00000 |
| 2" | 0.385" | 0.116" | T20 | 3/32" | 7/64" | 12 | Partially Threaded | 1 1/2" | 100 | 0000000 | 00000 |
Flanged Rounded Head Screws for Wood
With a low-profile rounded head that’s flanged to sit flush for a finished appearance, these screws press threads into wood on cabinets, trim, molding, and light duty framing. Because they’re flanged, they distribute pressure across a wide surface, creating a tight hold and eliminating the need for a washer. The Torx drive has more points of contact than Phillips, slotted, and square drives, so you can apply extra force without worrying about slipping or stripping. These screws have a zinc plating to resist corrosion in wet environments. To prevent splitting, drill a pilot hole slightly smaller than the screw. Length is measured from under the flange.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Length | Diameter | Height | Flange Thickness | Drive Size | Approximate Threads per Inch | Threading | Minimum Thread Length | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||||||
No. 8 | ||||||||||
| 1" | 0.43" | 0.09" | 0.05" | T15 | 15 | Fully Threaded | 1" | 100 | 000000000 | 000000 |
| 1 1/4" | 0.43" | 0.09" | 0.05" | T15 | 15 | Partially Threaded | 0.984" | 100 | 000000000 | 00000 |
| 1 1/2" | 0.43" | 0.09" | 0.05" | T15 | 15 | Partially Threaded | 1" | 100 | 000000000 | 00000 |
| 1 3/4" | 0.43" | 0.09" | 0.05" | T15 | 15 | Partially Threaded | 1.181" | 100 | 000000000 | 00000 |
| 2" | 0.43" | 0.09" | 0.05" | T15 | 15 | Partially Threaded | 1.299" | 100 | 000000000 | 00000 |
| 2 1/2" | 0.43" | 0.09" | 0.05" | T15 | 15 | Partially Threaded | 1.575" | 100 | 000000000 | 00000 |
| 2 3/4" | 0.43" | 0.09" | 0.05" | T15 | 15 | Partially Threaded | 1.811" | 100 | 000000000 | 00000 |
| 3 1/8" | 0.43" | 0.09" | 0.05" | T15 | 15 | Partially Threaded | 2.087" | 100 | 000000000 | 00000 |
Torx Drilling Screws for Joining Wood to Metal
A Torx drive has more points of contact than a Phillips drive, allowing you to apply extra force with less slippage or damage to the recess. These screws speed installation by drilling, tapping, and fastening wood and metal in a single operation. Made from zinc-plated steel, they resist corrosion in wet environments. Length is measured from the top of the head.
For technical drawings and 3-D models, click on a part number.
Thread-Forming Screws for Joining Wood to Metal
Thread-forming screws press threads into drilled holes for a tight vibration-resistant assembly. All are beveled under the head for use in countersunk holes. A Torx drive allows you to apply extra force with less slippage or damage to the recess. They're black-phosphate steel to resist corrosion in dry environments. Length is measured from the top of the head.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Drive Size | Drill Bit Size | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
Black-Phosphate Steel | |||||||||
1/4"-20 | |||||||||
| 1" | 0.479" | 0.153" | T30 | No. 3 | Fully Threaded | __ | 50 | 000000000 | 000000 |
| 1 1/4" | 0.479" | 0.153" | T30 | No. 3 | Fully Threaded | __ | 50 | 000000000 | 00000 |
| 1 1/2" | 0.479" | 0.153" | T30 | No. 3 | Fully Threaded | __ | 50 | 000000000 | 00000 |
| 1 3/4" | 0.479" | 0.153" | T30 | No. 3 | Fully Threaded | __ | 50 | 000000000 | 00000 |
| 2" | 0.479" | 0.153" | T30 | No. 3 | Fully Threaded | __ | 50 | 000000000 | 00000 |
| 2 1/4" | 0.479" | 0.153" | T30 | No. 3 | Partially Threaded | 1 1/2" | 50 | 000000000 | 00000 |
| 2 1/2" | 0.479" | 0.153" | T30 | No. 3 | Partially Threaded | 1 1/2" | 25 | 000000000 | 00000 |
| 3" | 0.479" | 0.153" | T30 | No. 3 | Partially Threaded | 1 1/2" | 25 | 000000000 | 00000 |
| 3 1/2" | 0.479" | 0.153" | T30 | No. 3 | Partially Threaded | 1 1/2" | 10 | 000000000 | 00000 |
| 4" | 0.479" | 0.153" | T30 | No. 3 | Partially Threaded | 1 1/2" | 10 | 000000000 | 00000 |
5/16"-18 | |||||||||
| 1 3/4" | 0.6" | 0.191" | T40 | H | Fully Threaded | __ | 25 | 000000000 | 00000 |
| 2" | 0.6" | 0.191" | T40 | H | Fully Threaded | __ | 25 | 000000000 | 00000 |
| 2 1/4" | 0.6" | 0.191" | T40 | H | Partially Threaded | 1 1/2" | 10 | 000000000 | 0000 |
| 2 1/2" | 0.6" | 0.191" | T40 | H | Partially Threaded | 1 1/2" | 25 | 000000000 | 00000 |
| 3" | 0.6" | 0.191" | T40 | H | Partially Threaded | 1 1/2" | 10 | 000000000 | 00000 |
Steel Thread-Cutting Small-Head Screws
for Softwood and Plastic-Wood Composites
Because these steel screws cut threads into drilled holes as they’re turned, they require less driving torque and cause less stress on material than thread-forming screws. Also known as trim-head deck screws, they have a small flat head and slender shank to reduce the risk of splitting boards. Their thin head also means they won't stick out of decking, trim, and other finished surfaces. With a corrosion-resistant coating, these screws resist up to 1,500 hours of salt spray. They're green, so they blend in with most treated wood.
Length is measured from the top of the head.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Drive Size | Drill Bit Size | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
Corrosion-Resistant-Coated Steel | ||||||||||
No. 8 | ||||||||||
| 2" | 0.323" | 0.125" | T20 | 5/32" | 10 | Partially Threaded | 1.38" | 50 | 000000000 | 000000 |
No. 9 | ||||||||||
| 2 1/2" | 0.343" | 0.125" | T25 | 5/32" | 9 | Partially Threaded | 1.63" | 50 | 000000000 | 00000 |
| 3" | 0.343" | 0.125" | T25 | 5/32" | 9 | Partially Threaded | 2" | 25 | 000000000 | 00000 |
No. 10 | ||||||||||
| 3 1/2" | 0.354" | 0.125" | T25 | 5/32" | 8 | Partially Threaded | 2.38" | 25 | 000000000 | 00000 |
Distortion-Free Screws for Plastic-Wood Composites
Threads change pitch to help capture loose material and prevent distorting the surface around the hole. Also known as trim-head deck screws, these have a small flat head and slender shank to reduce the risk of splitting. They have a Type 17 auger point to penetrate softwood and plastic-wood composite decking material. A Torx drive allows you to apply extra force with less slippage or damage to the recess. Made from 18-8 stainless steel, they have good chemical resistance and are a good choice for ACQ-treated (arsenic-free) lumber. They may be mildly magnetic. Length is measured from the top of the head.
For technical drawings and 3-D models, click on a part number.