System of Measurement System of Measurement |
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Length Length | Show |
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Length Length | Hide |
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For Use In For Use In |
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Drive Style Drive Style |
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| Phillips | Square |
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| External Hex | Torx |
Material Material |
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Finish Finish |
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Threading Threading |
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 | Partially Threaded |
 | Fully Threaded |
 | Threaded on Both Ends |
Head Diameter Head Diameter |
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Head Height Head Height |
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Tapping Method Tapping Method |
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| Thread Forming | Thread Cutting |
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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About Tapping Screws
More
About Hex Head Screws and Bolts
More
About Threaded Studs and Rods
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. 10 | |||||||||||
| 3 1/2" | 0.385" | 0.116" | No. 2 | 3/32" | 7/64" | 13 | Partially Threaded | 2.333" | 50 | 000000000 | 000000 |
No. 12 | |||||||||||
| 3 1/2" | 0.438" | 0.132" | No. 3 | 7/64" | 1/8" | 11 | Partially Threaded | 2.5" | 100 | 000000000 | 00000 |
No. 14 | |||||||||||
| 3 1/2" | 0.507" | 0.153" | No. 3 | 7/64" | 9/64" | 10 | Partially Threaded | 2.333" | 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. 10 | |||||||||||
| 3 1/2" | 0.385" | 0.116" | No. 2 | 3/32" | 7/64" | 13 | Partially Threaded | 2.333" | 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.
Steel Hex Head Screws for Wood
These steel screws have corrosion-resistant finishes. Also known as lag bolts, they have a hex head for 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. Length is measured from under the head.
Black-oxide steel screws have a coating that protects the steel from rusting in dry environments and blends in with dark surfaces.
Zinc-plated steel screws resist corrosion in wet environments.
Hot-dipped galvanized steel screws have a thick coating for better corrosion resistance than zinc-plated steel screws. They're a good choice for ACQ-treated (arsenic-free) lumber.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Approximate Threads per Inch | Threading | Minimum Thread Lg. | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Oxide Steel | |||||||||
1/4" | |||||||||
| 3 1/2" | 0.438" | 0.172" | 10 | Partially Threaded | 2.25" | ASME B18.2.1 | 5 | 000000000 | 00000 |
5/16" | |||||||||
| 3 1/2" | 0.5" | 0.219" | 9 | Partially Threaded | 2.25" | ASME B18.2.1 | 5 | 000000000 | 0000 |
3/8" | |||||||||
| 3 1/2" | 0.563" | 0.25" | 7 | Partially Threaded | 2.25" | ASME B18.2.1 | 1 | 000000000 | 0000 |
1/2" | |||||||||
| 3 1/2" | 0.75" | 0.344" | 6 | Partially Threaded | 2.25" | ASME B18.2.1 | 1 | 000000000 | 0000 |
3/4" | |||||||||
| 3 1/2" | 1.125" | 0.5" | 4.5 | Partially Threaded | 2.25" | ASME B18.2.1 | 1 | 000000000 | 00000 |
Zinc-Plated Steel | |||||||||
1/4" | |||||||||
| 3 1/2" | 0.438" | 0.172" | 10 | Partially Threaded | 2.25" | ASME B18.2.1 | 50 | 000000000 | 00000 |
5/16" | |||||||||
| 3 1/2" | 0.5" | 0.219" | 9 | Partially Threaded | 2.25" | ASME B18.2.1 | 50 | 000000000 | 00000 |
3/8" | |||||||||
| 3 1/2" | 0.563" | 0.25" | 7 | Partially Threaded | 2.25" | ASME B18.2.1 | 25 | 000000000 | 00000 |
1/2" | |||||||||
| 3 1/2" | 0.75" | 0.344" | 6 | Partially Threaded | 2.25" | ASME B18.2.1 | 10 | 000000000 | 0000 |
Hot-Dipped Galvanized Steel | |||||||||
1/4" | |||||||||
| 3 1/2" | 0.438" | 0.172" | 10 | Partially Threaded | 2.333" | ASME B18.2.1, ASTM A307, SAE J429 | 50 | 000000000 | 00000 |
5/16" | |||||||||
| 3 1/2" | 0.5" | 0.219" | 9 | Partially Threaded | 2.333" | ASME B18.2.1, ASTM A307, SAE J429 | 25 | 000000000 | 00000 |
3/8" | |||||||||
| 3 1/2" | 0.563" | 0.25" | 7 | Partially Threaded | 2.333" | ASME B18.2.1, ASTM A307, SAE J429 | 25 | 000000000 | 00000 |
1/2" | |||||||||
| 3 1/2" | 0.75" | 0.344" | 6 | Partially Threaded | 2.333" | ASME B18.2.1, ASTM A307, SAE J429 | 10 | 000000000 | 0000 |
5/8" | |||||||||
| 3 1/2" | 0.938" | 0.422" | 5 | Partially Threaded | 2.333" | ASME B18.2.1, ASTM A307, SAE J429 | 5 | 000000000 | 0000 |
18-8 Stainless Steel Hex Head Screws for Wood
18-8 stainless steel screws have good chemical resistance and are a good choice for ACQ-treated (arsenic-free) lumber. Also known as lag bolts, they have a hex head for 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. They may be mildly magnetic. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Approximate Threads per Inch | Threading | Minimum Thread Lg. | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
1/4" | |||||||||
| 3 1/2" | 0.438" | 0.172" | 10 | Partially Threaded | 2.333" | ASME B18.2.1 | 10 | 000000000 | 00000 |
5/16" | |||||||||
| 3 1/2" | 0.5" | 0.219" | 9 | Partially Threaded | 2.333" | ASME B18.2.1 | 10 | 000000000 | 0000 |
3/8" | |||||||||
| 3 1/2" | 0.563" | 0.25" | 7 | Partially Threaded | 2.333" | ASME B18.2.1 | 5 | 000000000 | 0000 |
1/2" | |||||||||
| 3 1/2" | 0.75" | 0.344" | 6 | Partially Threaded | 2.333" | ASME B18.2.1 | 1 | 000000000 | 0000 |
5/8" | |||||||||
| 3 1/2" | 0.938" | 0.422" | 5 | Partially Threaded | 2.333" | ASME B18.2.1 | 1 | 000000000 | 0000 |
3/4" | |||||||||
| 3 1/2" | 1.125" | 0.5" | 4.5 | Partially Threaded | 2.333" | ASME B18.2.1 | 1 | 000000000 | 00000 |
Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws for Wood
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. Also known as lag bolts, they have a hex head for 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. They may be mildly magnetic. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Approximate Threads per Inch | Threading | Minimum Thread Lg. | Specifications Met | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||||||
1/4" | |||||||||
| 3 1/2" | 0.438" | 0.172" | 10 | Partially Threaded | 2.333" | ASME B18.2.1 | 5 | 000000000 | 00000 |
5/16" | |||||||||
| 3 1/2" | 0.5" | 0.219" | 9 | Partially Threaded | 2.333" | ASME B18.2.1 | 5 | 000000000 | 0000 |
3/8" | |||||||||
| 3 1/2" | 0.563" | 0.25" | 7 | Partially Threaded | 2.333" | ASME B18.2.1 | 1 | 000000000 | 0000 |
1/2" | |||||||||
| 3 1/2" | 0.75" | 0.344" | 6 | Partially Threaded | 2.333" | ASME B18.2.1 | 1 | 000000000 | 0000 |
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.
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 | Threading | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | |||||||||||||
No. 10 | |||||||||||||
| 3 1/2" | Cutting Wings | No. 4 | 3/8" | 0.11"-0.21" | 0.75"-2.5" | 0.362" | 0.116" | No. 2 | 10-24 | Fully Threaded | 10 | 000000000 | 00000 |
No. 12 | |||||||||||||
| 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 |
1/4" | |||||||||||||
| 3 1/2" | Cutting Wings | No. 4 | 1/2" | 0.11"-0.375" | 0.75"-2.5" | 0.472" | 0.153" | No. 3 | 1/4"-20 | Fully Threaded | 5 | 000000000 | 0000 |
Thread-Forming Screws for Joining Wood to Metal
Thread-forming screws press threads into drilled holes for a tight vibration-resistant assembly. All are beveled under the head for use in countersunk holes. A Torx drive allows you to apply extra force with less slippage or damage to the recess. They're black-phosphate steel to resist corrosion in dry environments. 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 | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
Black-Phosphate Steel | |||||||||
1/4"-20 | |||||||||
| 3 1/2" | 0.479" | 0.153" | T30 | No. 3 | Partially Threaded | 1 1/2" | 10 | 000000000 | 00000 |
Screws for Hardwood
Also known as Type 17 auger point screws, these penetrate hardwood and reduce driving torque. They require a pilot hole to prevent splitting when used near an edge. They're beveled under the head for use in countersunk holes. Ribs underneath the head prevent loosening. 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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Drive Size | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
No. 10 | |||||||||
| 3 1/2" | 0.378" | 0.11" | No. 2 | 8 | Partially Threaded | 2.25" | 10 | 000000000 | 00000 |
Steel Flat Head Screws for Plywood and Oriented Strand Board
These steel screws are zinc plated to resist corrosion in wet environments. 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. Length is measured from the top of the head.
Head | Drive | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Size | Style | Drill Bit Size | Approximate Threads per Inch | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | |||||||||
No. 10 | |||||||||
| 3 1/2" | 0.4" | 0.13" | No. 2/No. 2 | Square/Phillips | 3/32" | 13 | 50 | 000000000 | 000000 |
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.
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. 10 | ||||||||||
| 3 1/2" | 0.344" | 0.189" | No. 2 | 3/32" | 13 | Partially Threaded | 2.31" | 25 | 000000000 | 000000 |
No. 12 | ||||||||||
| 3 1/2" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | Partially Threaded | 2.31" | 10 | 000000000 | 00000 |
No. 14 | ||||||||||
| 3 1/2" | 0.43" | 1/4" | No. 3 | 7/64" | 10 | Partially Threaded | 2 1/4" | 5 | 000000000 | 0000 |
Phillips Screws for Softwood and Plastic-Wood Composites
A curved neck sinks into material, so these screws sit flush with the surface. Also known as deck screws, they have a sharp point and narrow body to penetrate softwood and plastic-wood composite decking material. They're made from hardened steel and have a ultra-corrosion-resistant coating that resists at least 500 hours of salt spray. 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. | |
Ultra-Corrosion-Resistant Coated Steel | ||||||||||
No. 10 | ||||||||||
| 3 1/2" | 0.363" | 7/32" | No. 2 | 3/32" | 13 | Partially Threaded | 2.31" | 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.
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. 9 | ||||||||||
| 3 1/2" | 0.25" | 0.125" | No. 1 | 5/64" | 14 | Partially Threaded | 1 3/4" | 10 | 000000000 | 00000 |
Steel Thread-Cutting Small-Head Screws for Softwood and Plastic-Wood Composites
These steel screws have an ultra-corrosion-resistant coating to resist corrosion in wet environments. 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. 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. | |
Ultra-Corrosion-Resistant Coated Steel | ||||||||||
No. 8 | ||||||||||
| 3 1/2" | 0.27" | 0.105" | No. 2 | 5/64" | 15 | Partially Threaded | 1 3/4" | 25 | 000000000 | 000000 |
Wood Screw-Style Hangers
Drive these hangers into wood with an adjustable wrench, pliers, or a special driver bit (sold separately). They’re also known as eye lags.
Zinc- and zinc yellow-chromate plated steel hangers are corrosion resistant in wet environments. The zinc yellow-chromate plated steel hangers meet quality standards outlined in ASTM B633 and dimensional standards outlined in ASME B18.2.1.
For technical drawings and 3-D models, click on a part number.
Stainless Steel Wood Screw Threaded Studs
18-8 stainless steel studs have good chemical resistance and may be mildly magnetic. Also known as hanger bolts, use them to hang, mount, and fasten parts to wood structures. Install with a stud driver or create wrench flats by threading two nuts onto the stud and jamming them together.
For technical drawings and 3-D models, click on a part number.
(A) | (B) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Screw Size | Thread Lg. | Thread Size | Thread Lg. | Lg. | Tensile Strength | Hardness | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
| 1/4" | 2" | 1/4"-20 | 1 1/2" | 3 1/2" | Not Rated | Not Rated | 10 | 000000000 | 00000 |
| 3/8" | 2" | 3/8"-16 | 1 1/2" | 3 1/2" | Not Rated | Not Rated | 5 | 000000000 | 00000 |
| 5/16" | 2" | 5/16"-18 | 1 1/2" | 3 1/2" | Not Rated | Not Rated | 10 | 000000000 | 00000 |
| 1/2" | 2" | 1/2"-13 | 1 1/2" | 3 1/2" | Not Rated | Not Rated | 1 | 000000000 | 0000 |
Steel Wood Screw Threaded Studs
These studs are also known as hanger bolts—use them to hang, mount, and fasten parts to wood structures. Install with a stud driver or create wrench flats by threading two nuts onto the stud and jamming them together.
Black-oxide steel studs are mildly corrosion resistant in dry environments.
Zinc-plated steel studs resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
(A) | (B) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Screw Size | Thread Lg. | Thread Size | Thread Lg. | Lg. | Tensile Strength | Hardness | Pkg. Qty. | Pkg. | |
Black-Oxide Steel | |||||||||
| 5/16" | 2" | 5/16"-18 | 1 1/2" | 3 1/2" | Not Rated | Not Rated | 5 | 000000000 | 00000 |
| 3/8" | 2" | 3/8"-16 | 1 1/2" | 3 1/2" | Not Rated | Not Rated | 5 | 000000000 | 00000 |
Zinc-Plated Steel | |||||||||
| 5/16" | 2" | 5/16"-18 | 1 1/2" | 3 1/2" | Not Rated | Not Rated | 25 | 000000000 | 00000 |
| 3/8" | 2" | 3/8"-16 | 1 1/2" | 3 1/2" | Not Rated | Not Rated | 10 | 000000000 | 0000 |
Wood-to-Wood Joining Studs
Also known as dowel screws, use these to join two pieces of wood.
For technical drawings and 3-D models, click on a part number.
| Lg. | Thread Lg. | Tensile Strength | Hardness | Pkg. Qty. | Pkg. | |
Steel | ||||||
|---|---|---|---|---|---|---|
1/4" | ||||||
| 3 1/2" | 1 5/8" | Not Rated | Rockwell B80 | 25 | 000000000 | 000000 |