About Tapping Screws
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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.
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. 9  | ||||||||||
| 2 1/2" | 0.343" | 0.125" | T25 | 5/32" | 9 | Partially Threaded | 1.63" | 50 | 000000000 | 000000 |
| 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 |