Screw Features Screw Features |
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| Flanged | Sealing |
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| With Washer |
System of Measurement System of Measurement |
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For Use In For Use In |
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Tip Type Tip Type |
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 | Pointed |
Drive Style Drive Style |
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| Square | External Hex | Torx |
Threading Threading |
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 | Partially Threaded |
 | Fully Threaded |
Material Material |
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Minimum Thread Length Minimum Thread Length |
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Tapping Method Tapping Method |
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| Thread Forming | Thread Cutting |
Washer Material Washer Material |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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About Tapping Screws
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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 |
Steel Flanged Hex Head Screws for Wood
These steel screws are hot-dipped galvanized to resist corrosion in wet environments and are a good choice for ACQ-treated (arsenic-free) lumber. The flange reduces the risk of crushing material and the hex head provides a secure grip with a wrench. They press threads into material for a tight, secure hold. To prevent splitting, drill a pilot hole slightly smaller than the screw. Head height includes the flange. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Flange Dia. | Approximate Threads per Inch | Threading | Minimum Thread Lg. | Specifications Met | Pkg. Qty. | Pkg. | |
Hot-Dipped Galvanized Steel | ||||||||||
1/4" | ||||||||||
| 1" | 0.375" | 0.28" | 0.56" | 10 | Fully Threaded | 1/2" | ASTM A153 | 100 | 000000000 | 000000 |
| 1 1/2" | 0.375" | 0.28" | 0.56" | 10 | Partially Threaded | 3/4" | ASTM A153 | 50 | 000000000 | 00000 |
| 2" | 0.375" | 0.28" | 0.56" | 10 | Partially Threaded | 1" | ASTM A153 | 50 | 000000000 | 00000 |
| 2 1/2" | 0.375" | 0.28" | 0.56" | 10 | Partially Threaded | 1 1/4" | ASTM A153 | 50 | 000000000 | 00000 |
| 3" | 0.375" | 0.28" | 0.56" | 10 | Partially Threaded | 1 1/2" | ASTM A153 | 50 | 000000000 | 00000 |
5/16" | ||||||||||
| 1" | 0.5" | 0.32" | 0.68" | 9 | Fully Threaded | 1/2" | ASTM A153 | 50 | 000000000 | 00000 |
| 1 1/2" | 0.5" | 0.32" | 0.68" | 9 | Partially Threaded | 3/4" | ASTM A153 | 50 | 000000000 | 00000 |
| 2" | 0.5" | 0.32" | 0.68" | 9 | Partially Threaded | 1" | ASTM A153 | 50 | 000000000 | 00000 |
| 2 1/2" | 0.5" | 0.32" | 0.68" | 9 | Partially Threaded | 1 1/4" | ASTM A153 | 25 | 000000000 | 00000 |
3/8" | ||||||||||
| 1 1/2" | 0.563" | 0.39" | 0.81" | 7 | Fully Threaded | 3/4" | ASTM A153 | 25 | 000000000 | 00000 |
| 2" | 0.563" | 0.39" | 0.81" | 7 | Partially Threaded | 1" | ASTM A153 | 25 | 000000000 | 00000 |
| 2 1/2" | 0.563" | 0.39" | 0.81" | 7 | Partially Threaded | 1 1/4" | ASTM A153 | 25 | 000000000 | 00000 |
| 3" | 0.563" | 0.39" | 0.81" | 7 | Partially Threaded | 1 1/2" | ASTM A153 | 25 | 000000000 | 00000 |
| 4" | 0.563" | 0.39" | 0.81" | 7 | Partially Threaded | 2" | ASTM A153 | 10 | 000000000 | 00000 |
| 5" | 0.563" | 0.39" | 0.81" | 7 | Partially Threaded | 3" | ASTM A153 | 5 | 000000000 | 0000 |
| 6" | 0.563" | 0.39" | 0.81" | 7 | Partially Threaded | 3 1/2" | ASTM A153 | 5 | 000000000 | 00000 |
Stainless Steel Flanged Hex Head Screws for Wood
These 316 stainless steel screws have excellent resistance to chemicals and salt water and are a good choice for ACQ-treated (arsenic-free) lumber. The flange reduces the risk of crushing material and the hex head provides a secure grip with a wrench. They press threads into material for a tight, secure hold. To prevent splitting, drill a pilot hole slightly smaller than the screw. Screws may be mildly magnetic. Head height includes the flange. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Flange Dia. | Approximate Threads per Inch | Threading | Minimum Thread Lg. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||||||
3/16" | |||||||||
| 4" | 0.313" | 0.21" | 0.45" | 13 | Partially Threaded | 2 3/8" | 10 | 000000000 | 000000 |
| 6" | 0.313" | 0.21" | 0.45" | 13 | Partially Threaded | 2 3/8" | 5 | 000000000 | 00000 |
| 8" | 0.313" | 0.21" | 0.45" | 13 | Partially Threaded | 2 3/8" | 1 | 000000000 | 0000 |
1/4" | |||||||||
| 4" | 0.5" | 0.275" | 0.66" | 7 | Partially Threaded | 2.95" | 1 | 000000000 | 0000 |
| 5" | 0.5" | 0.275" | 0.66" | 7 | Partially Threaded | 2.95" | 1 | 000000000 | 0000 |
| 6" | 0.5" | 0.275" | 0.66" | 7 | Partially Threaded | 2.95" | 1 | 000000000 | 0000 |
| 8" | 0.5" | 0.275" | 0.66" | 7 | Partially Threaded | 2.95" | 1 | 000000000 | 00000 |
| 10" | 0.5" | 0.275" | 0.66" | 10 | Partially Threaded | 2 3/8" | 1 | 000000000 | 00000 |
Sealing Screws for Softwood and Plastic-Wood Composites
The neoprene-backed washer seals out contaminants. Also known as trim-head deck screws, they 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. Made from 18-8 stainless steel, they have good chemical resistance and are a good choice for ACQ-treated (arsenic-free) lumber. Screws 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.
Head | Washer | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | OD | Thick. | Drive Size | Drill Bit Size | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||||||
No. 7 | ||||||||||||
| 1" | 0.23" | 0.125" | 0.63" | 0.2" | No. 1 | 1/16" | 16 | Partially Threaded | 7/8" | 25 | 000000000 | 000000 |
| 1 5/8" | 0.23" | 0.125" | 0.63" | 0.2" | No. 1 | 1/16" | 16 | Partially Threaded | 1 1/8" | 25 | 000000000 | 00000 |
| 2 1/4" | 0.23" | 0.125" | 0.63" | 0.2" | No. 1 | 1/16" | 16 | Partially Threaded | 1 1/4" | 10 | 000000000 | 00000 |
| 3" | 0.23" | 0.125" | 0.63" | 0.2" | No. 1 | 1/16" | 16 | Partially Threaded | 2" | 10 | 000000000 | 00000 |
Screws for Joining Sheet Metal to Wood
Able to penetrate overlapping sheets, these screws have a secure hold in wood. The hex head allows for a firm grip with a wrench, while a rubber washer provides a watertight seal. They're corrosion-resistant-coated steel to resist corrosion in wet environments and minimize reactions between dissimilar metals. Length is measured from under the washer.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||
|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Washer OD | Drill Bit Size | Approximate Threads per Inch | Pkg. Qty. | Pkg. | |
Corrosion-Resistant-Coated Steel | ||||||||
No. 9 | ||||||||
| 1" | 0.25" | 0.16" | 0.472" | __ | 15 | 100 | 000000000 | 000000 |
| 1 1/2" | 0.25" | 0.16" | 0.472" | __ | 15 | 50 | 000000000 | 0000 |
| 2" | 0.25" | 0.16" | 0.472" | __ | 15 | 50 | 000000000 | 0000 |
| 2 1/2" | 0.25" | 0.16" | 0.472" | __ | 15 | 50 | 000000000 | 00000 |
| 3" | 0.25" | 0.16" | 0.472" | __ | 15 | 25 | 000000000 | 0000 |
No. 10 | ||||||||
| 1" | 0.25" | 0.169" | 0.45" | No. 21 | 16 | 100 | 000000000 | 00000 |
| 1 1/2" | 0.25" | 0.169" | 0.45" | No. 21 | 12 | 100 | 000000000 | 00000 |
| 2" | 0.25" | 0.169" | 0.45" | No. 21 | 12 | 50 | 000000000 | 00000 |
| 2 1/2" | 0.25" | 0.169" | 0.45" | No. 21 | 12 | 50 | 000000000 | 00000 |
| 3" | 0.25" | 0.169" | 0.45" | No. 21 | 12 | 50 | 000000000 | 00000 |
No. 14 | ||||||||
| 1 1/2" | 0.313" | 0.15" | 0.593" | __ | 10 | 25 | 000000000 | 0000 |