System of Measurement System of Measurement |
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Screw Size Screw Size | Show |
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Screw Size Screw Size | Hide |
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Head Type Head Type |
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 | Flat |
For Use In For Use In |
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Tip Type Tip Type |
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 | Pointed |
Material Material |
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Finish Finish |
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Threading Threading |
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 | Partially Threaded |
 | Fully Threaded |
Minimum Thread Length Minimum Thread Length |
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Tapping Method Tapping Method |
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| Thread Forming | Thread Cutting |
Hardwood Drill Bit Size Hardwood Drill Bit Size |
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Hardwood Drill Bit Size Decimal Equivalent Hardwood Drill Bit SizeDecimal Equivalent |
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Softwood Drill Bit Size Decimal Equivalent Softwood Drill Bit SizeDecimal Equivalent |
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Softwood Drill Bit Size Softwood Drill Bit Size |
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About Tapping Screws
More
Steel Phillips Flat Head Screws for Wood
These steel screws are zinc plated to resist corrosion in wet environments. All are beveled under the head for use in countersunk holes. They press threads into material for a tight, secure hold. 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. 9 | |||||||||||
| 5/8" | 0.358" | 0.108" | No. 2 | 5/64" | 7/64" | 14 | Partially Threaded | 0.417" | 100 | 000000000 | 00000 |
| 3/4" | 0.358" | 0.108" | No. 2 | 5/64" | 7/64" | 14 | Partially Threaded | 0.5" | 100 | 000000000 | 0000 |
| 1" | 0.358" | 0.108" | No. 2 | 5/64" | 7/64" | 14 | Partially Threaded | 0.75" | 100 | 000000000 | 0000 |
| 1 1/4" | 0.358" | 0.108" | No. 2 | 5/64" | 7/64" | 14 | Partially Threaded | 0.875" | 100 | 000000000 | 0000 |
| 1 1/2" | 0.358" | 0.108" | No. 2 | 5/64" | 7/64" | 14 | Partially Threaded | 1" | 100 | 000000000 | 0000 |
| 2" | 0.358" | 0.108" | No. 2 | 5/64" | 7/64" | 14 | Partially Threaded | 1.25" | 100 | 000000000 | 0000 |
| 3" | 0.358" | 0.108" | No. 2 | 5/64" | 7/64" | 14 | Partially Threaded | 1.98" | 50 | 000000000 | 0000 |
Brass Phillips Flat Head Screws for Wood
Brass screws are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. All are beveled under the head for use in countersunk holes. They press threads into material for a tight, secure hold. 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. | |
Brass | |||||||||||
No. 9 | |||||||||||
| 5/8" | 0.358" | 0.108" | No. 2 | 5/64" | 7/64" | 14 | Partially Threaded | 0.417" | 50 | 000000000 | 00000 |
| 3/4" | 0.358" | 0.108" | No. 2 | 5/64" | 7/64" | 14 | Partially Threaded | 0.5" | 50 | 000000000 | 0000 |
| 1" | 0.358" | 0.108" | No. 2 | 5/64" | 7/64" | 14 | Partially Threaded | 0.667" | 50 | 000000000 | 00000 |
| 1 1/2" | 0.358" | 0.108" | No. 2 | 5/64" | 7/64" | 14 | Partially Threaded | 1" | 50 | 000000000 | 00000 |
18-8 Stainless Steel Flat Head Screws
for Plywood and Oriented Strand Board
18-8 stainless steel screws have good chemical resistance and are a good choice for ACQ-treated (arsenic-free) lumber. They are beveled under the head for use in countersunk holes. They penetrate plywood and oriented strand board (OSB) without splitting. Threads are serrated for lower driving torque. 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 | Drive | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Size | Style | Drill Bit Size | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||||
No. 9 | |||||||||||
| 1 1/2" | 0.346" | 0.143" | No. 2 | Square/Phillips | 5/64" | 14 | Partially Threaded | 3/4" | 50 | 000000000 | 00000 |
| 2" | 0.346" | 0.143" | No. 2 | Square/Phillips | 5/64" | 14 | Partially Threaded | 3/4" | 50 | 000000000 | 00000 |
| 2 1/2" | 0.346" | 0.143" | No. 2 | Square/Phillips | 5/64" | 14 | Partially Threaded | 3/4" | 25 | 000000000 | 0000 |
Flat Head Screws for Particleboard and Fiberboard
Beveled under the head for use in countersunk holes. Sharp, angled threads cut into particleboard, medium-density fiberboard (MDF), and hardboard such as masonite without splitting. Length is measured from the top of the head.
Black-oxide steel screws are mildly corrosion resistant in dry environments.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Dia. Tolerance | Ht. | Drive Size | Drill Bit Size | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
Black-Oxide Steel | |||||||||||
No. 9 | |||||||||||
| 3/4" | 0.358" | -0.042" | 0.108" | No. 2 | No. 45 | 10 | Fully Threaded | __ | 100 | 000000000 | 00000 |
| 1" | 0.358" | -0.042" | 0.108" | No. 2 | No. 45 | 10 | Fully Threaded | __ | 100 | 000000000 | 0000 |
| 1 1/4" | 0.358" | -0.042" | 0.108" | No. 2 | No. 45 | 10 | Partially Threaded | 0.838" | 100 | 000000000 | 0000 |
| 1 1/2" | 0.358" | -0.042" | 0.108" | No. 2 | No. 45 | 10 | Partially Threaded | 1" | 100 | 000000000 | 00000 |
| 1 3/4" | 0.358" | -0.042" | 0.108" | No. 2 | No. 45 | 10 | Partially Threaded | 1.17" | 50 | 000000000 | 0000 |
| 2 1/2" | 0.358" | -0.042" | 0.108" | No. 2 | No. 45 | 10 | Partially Threaded | 1.675" | 50 | 000000000 | 0000 |
| 3" | 0.358" | -0.042" | 0.108" | No. 2 | No. 45 | 10 | Partially Threaded | 2.01" | 50 | 000000000 | 00000 |
18-8 Stainless Steel Thread-Cutting Small-Head
Screws for Softwood and Plastic-Wood Composites
18-8 stainless steel screws have good chemical resistance and are a good choice for ACQ-treated (arsenic-free) lumber. Also known as trim-head deck screws, they have a small flat head and slender shank to reduce the risk of splitting. The Type 17 auger point and narrow body penetrate softwood and plastic-wood composite decking material. They cut threads into drilled holes as they’re turned, so they require less driving torque and cause less stress on material than thread-forming screws. 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.
Square Extreme-Capacity Turntables
