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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Material Material |
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For Use In For Use In |
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Threading Threading |
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 | Partially Threaded |
 | Fully Threaded |
Drive Size Drive Size |
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Hardwood Drill Bit Size Hardwood Drill Bit Size |
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Minimum Thread Length Minimum Thread Length |
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Flat Head Profile Flat Head Profile |
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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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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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Rounded Head Style Rounded Head Style |
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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. 12 | |||||||||||
| 3/4" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 0.5" | 100 | 000000000 | 00000 |
| 1" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 0.667" | 100 | 000000000 | 0000 |
| 1 1/4" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 0.75" | 100 | 000000000 | 0000 |
| 1 1/2" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1.25" | 100 | 000000000 | 0000 |
| 1 3/4" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1.375" | 100 | 000000000 | 0000 |
| 2" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1.333" | 100 | 000000000 | 00000 |
| 2 1/2" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1.75" | 100 | 000000000 | 00000 |
| 3" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 2" | 100 | 000000000 | 00000 |
| 3 1/2" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 2.5" | 100 | 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. 12 | |||||||||||
| 3/4" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Fully Threaded | __ | 50 | 000000000 | 000000 |
| 1" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 0.864" | 50 | 000000000 | 00000 |
| 1 1/4" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 0.864" | 25 | 000000000 | 0000 |
| 1 1/2" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1" | 25 | 000000000 | 0000 |
| 1 3/4" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1.167" | 25 | 000000000 | 0000 |
| 2" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1.333" | 25 | 000000000 | 00000 |
| 2 1/2" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1.667" | 10 | 000000000 | 0000 |
| 3" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 2" | 10 | 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. 12 | |||||||||||
| 3/4" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 0.5" | 25 | 000000000 | 00000 |
| 1" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 0.667" | 25 | 000000000 | 0000 |
| 1 1/4" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 0.833" | 25 | 000000000 | 0000 |
| 1 1/2" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1" | 25 | 000000000 | 00000 |
| 1 3/4" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1.167" | 25 | 000000000 | 00000 |
| 2" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1.333" | 10 | 000000000 | 0000 |
| 2 1/2" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1.667" | 10 | 000000000 | 0000 |
| 3" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 2" | 10 | 000000000 | 0000 |
| 3 1/2" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 2.333" | 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. 12 | |||||||||||
| 1 1/2" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1" | 10 | 000000000 | 00000 |
| 2" | 0.412" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1.333" | 5 | 000000000 | 0000 |
| 2 1/2" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1.66" | 5 | 000000000 | 0000 |
| 3" | 0.412" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 2" | 5 | 000000000 | 0000 |
Zinc-Plated Steel | |||||||||||
No. 12 | |||||||||||
| 1" | 0.412" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 0.667" | 50 | 000000000 | 0000 |
| 1 1/2" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1" | 50 | 000000000 | 0000 |
| 2" | 0.412" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1.333" | 50 | 000000000 | 00000 |
| 2 1/2" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1.66" | 25 | 000000000 | 0000 |
| 3" | 0.412" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 2" | 25 | 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. 12 | ||||||||||
| 3/4" | 0.438" | 0.132" | 7/64" | 1/8" | 11 | Partially Threaded | 0.5" | 100 | 000000000 | 00000 |
| 1" | 0.438" | 0.132" | 7/64" | 1/8" | 11 | Partially Threaded | 0.66" | 100 | 000000000 | 0000 |
| 1 1/4" | 0.438" | 0.132" | 7/64" | 1/8" | 11 | Partially Threaded | 0.832" | 100 | 000000000 | 00000 |
| 1 1/2" | 0.438" | 0.132" | 7/64" | 1/8" | 11 | Partially Threaded | 0.976" | 100 | 000000000 | 0000 |
| 2" | 0.438" | 0.132" | 7/64" | 1/8" | 11 | Partially Threaded | 1.33" | 100 | 000000000 | 00000 |
| 2 1/2" | 0.438" | 0.132" | 7/64" | 1/8" | 11 | Partially Threaded | 1.66" | 100 | 000000000 | 00000 |
| 3" | 0.438" | 0.132" | 7/64" | 1/8" | 11 | Partially Threaded | 2" | 50 | 000000000 | 0000 |
Brass Slotted 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. | Softwood Drill Bit Size | Hardwood Drill Bit Size | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
Brass | ||||||||||
No. 12 | ||||||||||
| 1" | 0.438" | 0.132" | 7/64" | 1/8" | 11 | Partially Threaded | 0.667" | 50 | 000000000 | 000000 |
| 1 1/4" | 0.438" | 0.132" | 7/64" | 1/8" | 11 | Partially Threaded | 0.833" | 25 | 000000000 | 00000 |
| 1 1/2" | 0.438" | 0.132" | 7/64" | 1/8" | 11 | Partially Threaded | 1" | 25 | 000000000 | 00000 |
| 2" | 0.438" | 0.132" | 7/64" | 1/8" | 11 | Partially Threaded | 1.333" | 25 | 000000000 | 00000 |
Stainless Steel Slotted 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. | Softwood Drill Bit Size | Hardwood Drill Bit Size | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||||
No. 12 | ||||||||||
| 2" | 0.438" | 0.132" | 7/64" | 1/8" | 11 | Partially Threaded | 1.333" | 25 | 000000000 | 000000 |
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. 12 | |||||||||||
| 1" | 0.408" | 0.153" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 0.667" | 25 | 000000000 | 000000 |
| 1 1/4" | 0.408" | 0.153" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 0.833" | 10 | 000000000 | 0000 |
| 1 1/2" | 0.408" | 0.153" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1" | 10 | 000000000 | 0000 |
| 2" | 0.408" | 0.153" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 1.333" | 10 | 000000000 | 0000 |
Steel Slotted Decorative Rounded Head Screws for Wood
These steel screws are zinc plated to resist corrosion in wet environments. A decorative rounded top provides a finished appearance. 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 under 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. 12 | ||||||||||
| 3/4" | 0.408" | 0.153" | 7/64" | 1/8" | 11 | Partially Threaded | 0.5" | 100 | 000000000 | 00000 |
| 1" | 0.408" | 0.153" | 7/64" | 1/8" | 11 | Partially Threaded | 0.667" | 100 | 000000000 | 0000 |
| 1 1/4" | 0.408" | 0.153" | 7/64" | 1/8" | 11 | Partially Threaded | 0.833" | 100 | 000000000 | 00000 |
| 1 1/2" | 0.408" | 0.153" | 7/64" | 1/8" | 11 | Partially Threaded | 1" | 100 | 000000000 | 00000 |
Brass Slotted Decorative Rounded Head Screws for Wood
Brass screws are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. A decorative rounded top provides a finished appearance. 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 under 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. | |
Brass | ||||||||||
No. 12 | ||||||||||
| 1" | 0.408" | 0.153" | 7/64" | 1/8" | 11 | Partially Threaded | 0.667" | 50 | 000000000 | 000000 |
| 1 1/2" | 0.408" | 0.153" | 7/64" | 1/8" | 11 | Partially Threaded | 1" | 25 | 000000000 | 00000 |
| 2" | 0.408" | 0.153" | 7/64" | 1/8" | 11 | Partially Threaded | 1.333" | 25 | 000000000 | 00000 |
Steel Phillips Drilling Screws for Joining Wood to Metal
These screws speed installation by drilling, tapping, and fastening wood and metal in a single operation. Length is measured from the top of the head.
Screws with cutting wings drill a slightly larger hole in the wood to allow for expansion. The wings break off when they contact metal, so the screw can tap the remainder of the hole.
Zinc-plated steel screws resist corrosion in wet environments.
Ultra-corrosion-resistant coated steel screws are a good choice for ACQ-treated (arsenic-free) lumber.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Screw Features | Drill Point Size | Drill Tip Lg. | For Metal Thick. | For Wood Thick. | Dia. | Ht. | Drive Size | Thread Size | Approximate Threads per Inch | Threading | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||||||||||
No. 12 | ||||||||||||||
| 2" | Cutting Wings | No. 4 | 7/16" | 0.11"-0.25" | 0.5"-1.25" | 0.412" | 0.132" | No. 3 | 12-24 | __ | Fully Threaded | 10 | 000000000 | 00000 |
| 2 1/2" | Cutting Wings | No. 4 | 7/16" | 0.11"-0.25" | 0.5"-1.5" | 0.412" | 0.132" | No. 3 | 12-24 | __ | Fully Threaded | 10 | 000000000 | 0000 |
| 3 1/2" | Cutting Wings | No. 4 | 7/16" | 0.11"-0.25" | 0.75"-2.5" | 0.412" | 0.132" | No. 3 | 12-24 | __ | Fully Threaded | 5 | 000000000 | 0000 |
| 4" | Cutting Wings | No. 4 | 7/16" | 0.11"-0.25" | 0.75"-2.625" | 0.412" | 0.132" | No. 3 | 12-24 | __ | Fully Threaded | 5 | 000000000 | 0000 |
Ultra-Corrosion-Resistant Coated Steel | ||||||||||||||
No. 12 | ||||||||||||||
| 1 5/8" | Cutting Wings | No. 4 | 7/16" | 0.13"-0.25" | 0.75"-1.125" | 0.476" | 0.25" | No. 3 | 12-24 | __ | Fully Threaded | 50 | 000000000 | 00000 |
| 1 3/4" | Cutting Wings | No. 4 | 3/4" | 0.06"-0.31" | 0.5"-0.75" | 0.54" | 0.165" | No. 3 | 12-24 | __ | Fully Threaded | 50 | 000000000 | 0000 |
| 2 1/4" | Cutting Wings | No. 4 | 1/2" | 0.13"-0.25" | 0.75"-1.375" | 0.438" | 0.16" | No. 3 | 12-24 | __ | Fully Threaded | 10 | 000000000 | 0000 |
| 2 3/4" | Cutting Wings | No. 4 | 1/2" | 0.13"-0.25" | 0.75"-1.625" | 0.438" | 0.16" | No. 3 | 12-24 | __ | Fully Threaded | 10 | 000000000 | 0000 |
| 3 5/8" | __ | No. 2 | 1 3/4" | 0.04"-0.15" | 0.75"-1.625" | 0.415" | 0.16" | No. 3 | __ | 14 | Fully Threaded | 25 | 000000000 | 0000 |
Stainless Steel Phillips Drilling
Screws for Joining Wood to Metal
18-8 stainless steel screws have good chemical resistance and are a good choice for ACQ-treated (arsenic-free) lumber. They speed installation by drilling, tapping, and fastening wood and metal in a single operation. Length is measured from the top of the head.
Screws with cutting wings drill a slightly larger hole in the wood to allow for expansion. The wings break off when they contact metal, so the screw can tap the remainder of the hole.
For technical drawings and 3-D models, click on a part number.
Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Screw Features | Drill Point Size | Drill Tip Lg. | Dia. | Ht. | Drive Size | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
Zinc-Aluminum Coated 18-8 Stainless Steel | ||||||||||||
No. 12 | ||||||||||||
| 1" | __ | No. 2 | 19/64" | 0.438" | 0.078" | No. 3 | 14 | Fully Threaded | __ | 10 | 000000000 | 00000 |
| 1 1/2" | __ | No. 2 | 19/64" | 0.438" | 0.078" | No. 3 | 14 | Fully Threaded | __ | 10 | 000000000 | 0000 |
| 2 13/16" | Cutting Wings | No. 5 | 45/64" | 0.438" | 0.132" | No. 3 | 14 | Partially Threaded | 1.5" | 5 | 000000000 | 0000 |
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. 12 | ||||||||||
| 2 1/2" | 0.43" | 0.203" | No. 3 | 7/64" | 7 | Partially Threaded | 1.65" | 25 | 000000000 | 00000 |
| 3" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | Partially Threaded | 1.98" | 25 | 000000000 | 00000 |
| 3 1/2" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | Partially Threaded | 2.31" | 10 | 000000000 | 0000 |
| 4" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | Partially Threaded | 2.64" | 10 | 000000000 | 0000 |
| 4 1/2" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | Partially Threaded | 2.97" | 10 | 000000000 | 0000 |
| 5" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | Partially Threaded | 3.3" | 10 | 000000000 | 0000 |
| 6" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | Partially Threaded | 3.96" | 10 | 000000000 | 00000 |
Super-Corrosion-Resistant 316
Stainless Steel Square-Drive Screws for
Softwood and Plastic-Wood Composites
More corrosion resistant than 18-8 stainless steel screws, these have excellent resistance to chemicals and salt water 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. | |
316 Stainless Steel | ||||||||||
No. 12 | ||||||||||
| 2 1/2" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | Partially Threaded | 1.65" | 25 | 000000000 | 000000 |
| 3" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | Partially Threaded | 1.98" | 25 | 000000000 | 00000 |
| 3 1/2" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | Partially Threaded | 2.31" | 10 | 000000000 | 0000 |
| 4" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | Partially Threaded | 2.64" | 10 | 000000000 | 0000 |
| 4 1/2" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | Partially Threaded | 2.97" | 10 | 000000000 | 0000 |
| 5" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | Partially Threaded | 3.3" | 10 | 000000000 | 00000 |
Square Extreme-Capacity Turntables
