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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Tip Type Tip Type |
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 | Pointed |
Material Material |
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Finish Finish |
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For Use In For Use In |
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Threading Threading |
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 | Partially Threaded |
Approximate Threads per Inch ApproximateThreads per Inch |
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Minimum Thread Length Minimum Thread Length |
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Drive Size Drive Size |
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Tapping Method Tapping Method |
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| Thread Forming | Thread Cutting |
Hardwood Drill Bit Size Decimal Equivalent Hardwood Drill Bit SizeDecimal Equivalent |
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Hardwood Drill Bit Size Hardwood Drill Bit Size |
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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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Flat Head Profile Flat Head Profile |
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 | Standard |
Rounded Head Style Rounded Head Style |
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 | Round |
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. 14 | |||||||||||
| 1" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 0.5" | 100 | 000000000 | 00000 |
| 1 1/4" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 0.875" | 100 | 000000000 | 0000 |
| 1 1/2" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 0.875" | 100 | 000000000 | 0000 |
| 2" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 1.25" | 100 | 000000000 | 00000 |
| 2 1/2" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 1.75" | 100 | 000000000 | 00000 |
| 3" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 2" | 100 | 000000000 | 00000 |
| 3 1/2" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 2.333" | 25 | 000000000 | 0000 |
| 4" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 2.667" | 25 | 000000000 | 00000 |
18-8 Stainless Steel Phillips Flat Head Screws for Wood
18-8 stainless steel screws have good chemical resistance and are a good choice for ACQ-treated (arsenic-free) lumber. 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. 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.
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. | |
18-8 Stainless Steel | |||||||||||
No. 14 | |||||||||||
| 1" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 0.968" | 25 | 000000000 | 000000 |
| 1 1/4" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 0.968" | 25 | 000000000 | 00000 |
| 1 1/2" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 1" | 10 | 000000000 | 0000 |
| 1 3/4" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 1.166" | 10 | 000000000 | 0000 |
| 2" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 1.333" | 10 | 000000000 | 0000 |
| 2 1/2" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 1.667" | 10 | 000000000 | 0000 |
| 3" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 2" | 10 | 000000000 | 00000 |
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. 14 | |||||||||||
| 1 1/2" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 1" | 10 | 000000000 | 00000 |
| 2" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 1.333" | 10 | 000000000 | 0000 |
| 2 1/2" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 1.667" | 10 | 000000000 | 0000 |
| 3" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 2" | 10 | 000000000 | 00000 |
| 4" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 2.667" | 10 | 000000000 | 00000 |
Steel Square-Drive Flat Head Screws for Wood
Beveled under the head for use in countersunk holes, these steel screws 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.
Black-oxide steel screws are mildly corrosion resistant in dry environments.
Zinc-plated steel screws resist corrosion in wet environments.
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. | |
Black-Oxide Steel | |||||||||||
No. 14 | |||||||||||
| 2" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 1.333" | 5 | 000000000 | 00000 |
| 3" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 2" | 5 | 000000000 | 0000 |
| 4" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 2.667" | 1 | 000000000 | 0000 |
Zinc-Plated Steel | |||||||||||
No. 14 | |||||||||||
| 1 1/2" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 1" | 50 | 000000000 | 00000 |
| 2" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 1.333" | 50 | 000000000 | 00000 |
| 2 1/2" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 1.667" | 25 | 000000000 | 0000 |
| 3" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 2" | 10 | 000000000 | 0000 |
| 4" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 2.667" | 10 | 000000000 | 0000 |
Steel Slotted 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. | Softwood Drill Bit Size | Hardwood Drill Bit Size | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||||||
No. 14 | ||||||||||
| 3/4" | 0.507" | 0.153" | 7/64" | 9/64" | 10 | Partially Threaded | 0.5" | 100 | 000000000 | 000000 |
| 1" | 0.507" | 0.153" | 7/64" | 9/64" | 10 | Partially Threaded | 0.66" | 100 | 000000000 | 0000 |
| 1 1/4" | 0.507" | 0.153" | 7/64" | 9/64" | 10 | Partially Threaded | 0.832" | 100 | 000000000 | 0000 |
| 1 1/2" | 0.507" | 0.153" | 7/64" | 9/64" | 10 | Partially Threaded | 1" | 100 | 000000000 | 00000 |
| 1 3/4" | 0.507" | 0.153" | 7/64" | 9/64" | 10 | Partially Threaded | 1.166" | 100 | 000000000 | 00000 |
| 2" | 0.507" | 0.153" | 7/64" | 9/64" | 10 | Partially Threaded | 1.33" | 100 | 000000000 | 00000 |
| 2 1/2" | 0.507" | 0.153" | 7/64" | 9/64" | 10 | Partially Threaded | 1.66" | 50 | 000000000 | 00000 |
| 3" | 0.507" | 0.153" | 7/64" | 9/64" | 10 | Partially Threaded | 2" | 50 | 000000000 | 00000 |
| 4" | 0.507" | 0.153" | 7/64" | 9/64" | 10 | Partially Threaded | 2.66" | 50 | 000000000 | 00000 |
Phillips Decorative Rounded Head Screws for Wood
A decorative rounded top provides a finished appearance. These screws press threads into material for a tight, secure hold. To prevent splitting, drill a pilot hole slightly smaller than the screw. Made from brass, they are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. Length is measured from under 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. 14 | |||||||||||
| 3/4" | 0.457" | 0.17" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 0.5" | 10 | 000000000 | 00000 |
| 1" | 0.457" | 0.17" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 0.667" | 10 | 000000000 | 0000 |
| 1 1/4" | 0.457" | 0.17" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 0.833" | 10 | 000000000 | 0000 |
| 1 1/2" | 0.457" | 0.17" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 1" | 10 | 000000000 | 0000 |
| 2" | 0.457" | 0.17" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 1.333" | 10 | 000000000 | 00000 |
18-8 Stainless Steel Square-Drive 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. They have a curved neck that sinks into material, so they sit flush with the surface. Also known as deck screws, they have a Type 17 auger point that penetrates softwood and plastic-wood composite decking material. 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.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Drive Size | Drill Bit Size | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||||
No. 14 | ||||||||||
| 3 1/2" | 0.43" | 1/4" | No. 3 | 7/64" | 10 | Partially Threaded | 2.31" | 10 | 000000000 | 00000 |
| 4" | 0.43" | 1/4" | No. 3 | 7/64" | 10 | Partially Threaded | 2.64" | 10 | 000000000 | 0000 |
| 5" | 0.43" | 1/4" | No. 3 | 7/64" | 10 | Partially Threaded | 3.3" | 10 | 000000000 | 00000 |