About Tapping Screws
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About Hex Head Screws and Bolts
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About Threaded Studs and Rods
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Steel Phillips Flat Head Screws for Wood
![](/prerenderstable/mvPRE/contents/gfx/imagecache/902/90294a203-15874097461621000141-p9@halfx_637565789513290105.png?ver=imagenotfound)
These screws 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.
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. | |
Zinc-Plated Steel | |||||||||||
No. 24 | |||||||||||
6" | 0.756" | 0.23" | No. 4 | 3/16" | 7/32" | 7 | Partially Threaded | 3" | 5 | 000000000 | 000000 |
Steel Hex Head Screws for Wood
![](/prerenderstable/mvPRE/contents/gfx/imagecache/914/91478a544polished-steelpositive_front_negative_right_flop15_1609368090_354@halfx_637449433495744869.png?ver=imagenotfound)
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" | |||||||||
6" | 0.438" | 0.172" | 10 | Partially Threaded | 3 1/2" | ASME B18.2.1 | 1 | 000000000 | 00000 |
5/16" | |||||||||
6" | 0.5" | 0.219" | 9 | Partially Threaded | 3 1/2" | ASME B18.2.1 | 1 | 000000000 | 0000 |
3/8" | |||||||||
6" | 0.563" | 0.25" | 7 | Partially Threaded | 3 1/2" | ASME B18.2.1 | 1 | 000000000 | 0000 |
1/2" | |||||||||
6" | 0.75" | 0.344" | 6 | Partially Threaded | 3 1/2" | ASME B18.2.1 | 1 | 000000000 | 0000 |
5/8" | |||||||||
6" | 0.938" | 0.422" | 5 | Partially Threaded | 3 1/2" | ASME B18.2.1 | 1 | 000000000 | 00000 |
3/4" | |||||||||
6" | 1.125" | 0.5" | 4.5 | Partially Threaded | 3 1/2" | ASME B18.2.1 | 1 | 000000000 | 00000 |
Zinc-Plated Steel | |||||||||
1/4" | |||||||||
6" | 0.438" | 0.172" | 10 | Partially Threaded | 3 1/2" | ASME B18.2.1 | 25 | 000000000 | 00000 |
5/16" | |||||||||
6" | 0.5" | 0.219" | 9 | Partially Threaded | 3 1/2" | ASME B18.2.1 | 25 | 000000000 | 00000 |
3/8" | |||||||||
6" | 0.563" | 0.25" | 7 | Partially Threaded | 3 1/2" | ASME B18.2.1 | 10 | 000000000 | 0000 |
1/2" | |||||||||
6" | 0.75" | 0.344" | 6 | Partially Threaded | 3 1/2" | ASME B18.2.1 | 10 | 000000000 | 00000 |
3/4" | |||||||||
6" | 1.125" | 0.5" | 4.5 | Partially Threaded | 3 1/2" | ASME B18.2.1 | 1 | 000000000 | 0000 |
Hot-Dipped Galvanized Steel | |||||||||
1/4" | |||||||||
6" | 0.438" | 0.172" | 10 | Partially Threaded | 4" | ASME B18.2.1, ASTM A307, SAE J429 | 25 | 000000000 | 00000 |
5/16" | |||||||||
6" | 0.5" | 0.219" | 9 | Partially Threaded | 4" | ASME B18.2.1, ASTM A307, SAE J429 | 25 | 000000000 | 00000 |
3/8" | |||||||||
6" | 0.563" | 0.25" | 7 | Partially Threaded | 4" | ASME B18.2.1, ASTM A307, SAE J429 | 10 | 000000000 | 00000 |
1/2" | |||||||||
6" | 0.75" | 0.344" | 6 | Partially Threaded | 4" | ASME B18.2.1, ASTM A307, SAE J429 | 5 | 000000000 | 00000 |
5/8" | |||||||||
6" | 0.938" | 0.422" | 5 | Partially Threaded | 4" | ASME B18.2.1, ASTM A307, SAE J429 | 1 | 000000000 | 0000 |
3/4" | |||||||||
6" | 1.125" | 0.5" | 4.5 | Partially Threaded | 4" | ASME B18.2.1, ASTM A307, SAE J429 | 1 | 000000000 | 0000 |
18-8 Stainless Steel Hex Head Screws for Wood
![](/prerenderstable/mvPRE/contents/gfx/imagecache/901/90123a116p1-b01-digital@halfx_636982558300691666.png?ver=imagenotfound)
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" | |||||||||
6" | 0.438" | 0.172" | 10 | Partially Threaded | 3 1/2" | ASME B18.2.1 | 10 | 000000000 | 000000 |
5/16" | |||||||||
6" | 0.5" | 0.219" | 9 | Partially Threaded | 3 1/2" | ASME B18.2.1 | 5 | 000000000 | 00000 |
3/8" | |||||||||
6" | 0.563" | 0.25" | 7 | Partially Threaded | 3 1/2" | ASME B18.2.1 | 5 | 000000000 | 00000 |
1/2" | |||||||||
6" | 0.75" | 0.344" | 6 | Partially Threaded | 3 1/2" | ASME B18.2.1 | 1 | 000000000 | 0000 |
5/8" | |||||||||
6" | 0.938" | 0.422" | 5 | Partially Threaded | 4" | ASME B18.2.1 | 1 | 000000000 | 00000 |
3/4" | |||||||||
6" | 1.125" | 0.5" | 4.5 | Partially Threaded | 4" | ASME B18.2.1 | 1 | 000000000 | 00000 |
Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws for Wood
![](/prerenderstable/mvPRE/contents/gfx/imagecache/901/90123a116p1-b01-digital@halfx_636982558300691666.png?ver=imagenotfound)
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" | |||||||||
6" | 0.438" | 0.172" | 10 | Partially Threaded | 4" | ASME B18.2.1 | 1 | 000000000 | 00000 |
5/16" | |||||||||
6" | 0.5" | 0.219" | 9 | Partially Threaded | 4" | ASME B18.2.1 | 1 | 000000000 | 0000 |
3/8" | |||||||||
6" | 0.563" | 0.25" | 7 | Partially Threaded | 4" | ASME B18.2.1 | 1 | 000000000 | 0000 |
1/2" | |||||||||
6" | 0.75" | 0.344" | 6 | Partially Threaded | 4" | ASME B18.2.1 | 1 | 000000000 | 0000 |
5/8" | |||||||||
6" | 0.938" | 0.422" | 5 | Partially Threaded | 4" | ASME B18.2.1 | 1 | 000000000 | 00000 |
3/4" | |||||||||
6" | 1.125" | 0.5" | 4.5 | Partially Threaded | 4" | ASME B18.2.1 | 1 | 000000000 | 00000 |
Steel Flanged Hex Head Screws for Wood
![](/prerenderstable/mvPRE/contents/gfx/imagecache/955/95526a100p1-b01-digital@halfx_637170874816113928.png?ver=imagenotfound)
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 | ||||||||||
3/8" | ||||||||||
6" | 0.563" | 0.39" | 0.81" | 7 | Partially Threaded | 3 1/2" | ASTM A153 | 5 | 000000000 | 000000 |
Stainless Steel Flanged Hex Head Screws for Wood
![](/prerenderstable/mvPRE/contents/gfx/imagecache/914/91428a111polished-steelnegative_front_negative_right_flop15_1617820554_821@halfx_637533994422005639.png?ver=imagenotfound)
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.
18-8 Stainless Steel Square-Drive Screws
for Softwood and Plastic-Wood Composites
![](/prerenderstable/mvPRE/contents/gfx/imagecache/900/90000a155-@halfx_636982599846406600.png?ver=imagenotfound)
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
![](/prerenderstable/mvPRE/contents/gfx/imagecache/900/90000a155-@halfx_636982599846406600.png?ver=imagenotfound)
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. 14 | ||||||||||
6" | 0.43" | 1/4" | No. 3 | 7/64" | 10 | Partially Threaded | 4" | 5 | 000000000 | 00000 |
Phillips Screws for Softwood and Plastic-Wood Composites
![](/prerenderstable/mvPRE/contents/gfx/imagecache/900/90095a414-@halfx_636982601081345709.png?ver=imagenotfound)
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 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. | |
Corrosion-Resistant-Coated Steel | ||||||||||
No. 10 | ||||||||||
6" | 0.342" | 3/16" | No. 2 | 5/64" | 9 | Partially Threaded | 1.65" | 30 | 000000000 | 000000 |
Screws for Joining Drywall to Wood
![](/prerenderstable/mvPRE/contents/gfx/imagecache/991/99136a300p1-b01-digitall@halfx_636971457211358333.png?ver=imagenotfound)
Hang drywall to wood framing. These screws have a sharp point that penetrates drywall and a curved neck that sinks in without tearing the paper surface. Length is measured from the top of the head.
Zinc-plated and zinc yellow-chromate plated steel screws are corrosion resistant in wet environments.
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. | |
Zinc Yellow-Chromate-Plated Steel | |||||||||
No. 10 | |||||||||
6" | 0.363" | 0.039" | No. 2 | 9 | Partially Threaded | 2 1/2" | 25 | 000000000 | 000000 |
Wood Screw-Style Hangers
![](/prerenderstable/mvPRE/contents/gfx/imagecache/901/90171a554-@halfx_637740297685757540.png?ver=imagenotfound)
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.
For technical drawings and 3-D models, click on a part number.
Stainless Steel Wood Screw Threaded Studs
![](/prerenderstable/mvPRE/contents/gfx/imagecache/909/90915a647polished-steelpositive_top_negative_right_straighton_1639146125_166@halfx_637747214576221726.png?ver=imagenotfound)
![](/prerenderstable/mvPRE/contents/gfx/imagecache/909/90915a647--1a3f8c628d21639148546-p9@halfx_637747237632944336.png?ver=imagenotfound)
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" | 3" | 1/4"-20 | 1 1/2" | 6" | Not Rated | Not Rated | 5 | 000000000 | 000000 |
5/16" | 3" | 5/16"-18 | 1 1/2" | 6" | Not Rated | Not Rated | 5 | 000000000 | 00000 |
3/8" | 3" | 3/8"-16 | 1 1/2" | 6" | Not Rated | Not Rated | 1 | 000000000 | 0000 |
1/2" | 3" | 1/2"-13 | 2 1/2" | 6" | Not Rated | Not Rated | 1 | 000000000 | 0000 |
Steel Wood Screw Threaded Studs
![](/prerenderstable/mvPRE/contents/gfx/imagecache/902/90207a636c1-b01-digitall1563562586-p9@halfx_636991414135299033.png?ver=imagenotfound)
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.