System of Measurement System of Measurement |
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Length Length | Show |
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Length Length | Hide |
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Tip Type Tip Type |
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![]() | Pointed |
Drive Style Drive Style |
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Phillips | Square | External Hex |
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 |
![]() | Threaded on Both Ends |
Tapping Method Tapping Method |
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Thread Forming | Thread Cutting |
Flat Head Profile Flat Head Profile |
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![]() | Standard |
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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 | |||||||||||
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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. 16 | |||||||||||
5" | 0.544" | 0.164" | No. 3 | 9/64" | 5/32" | 9 | Partially Threaded | 3.333" | 10 | 000000000 | 000000 |
No. 20 | |||||||||||
5" | 0.65" | 0.196" | No. 4 | 11/64" | 13/64" | 8 | Partially Threaded | 3.333" | 5 | 000000000 | 0000 |
No. 24 | |||||||||||
5" | 0.756" | 0.23" | No. 4 | 3/16" | 7/32" | 7 | Partially Threaded | 3.333" | 5 | 000000000 | 00000 |
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 | |||||||||
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Lg. | Wd. | Ht. | Approximate Threads per Inch | Threading | Minimum Thread Lg. | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Oxide Steel | |||||||||
1/4" | |||||||||
5" | 0.438" | 0.172" | 10 | Partially Threaded | 3.333" | ASME B18.2.1 | 5 | 000000000 | 00000 |
5/16" | |||||||||
5" | 0.5" | 0.219" | 9 | Partially Threaded | 3.333" | ASME B18.2.1 | 1 | 000000000 | 0000 |
3/8" | |||||||||
5" | 0.563" | 0.25" | 7 | Partially Threaded | 3.333" | ASME B18.2.1 | 1 | 000000000 | 0000 |
1/2" | |||||||||
5" | 0.75" | 0.344" | 6 | Partially Threaded | 3.333" | ASME B18.2.1 | 1 | 000000000 | 0000 |
5/8" | |||||||||
5" | 0.938" | 0.422" | 5 | Partially Threaded | 3.333" | ASME B18.2.1 | 1 | 000000000 | 0000 |
3/4" | |||||||||
5" | 1.125" | 0.5" | 4.5 | Partially Threaded | 3.333" | ASME B18.2.1 | 1 | 000000000 | 00000 |
Zinc-Plated Steel | |||||||||
1/4" | |||||||||
5" | 0.438" | 0.172" | 10 | Partially Threaded | 3.333" | ASME B18.2.1 | 50 | 000000000 | 00000 |
5/16" | |||||||||
5" | 0.5" | 0.219" | 9 | Partially Threaded | 3.333" | ASME B18.2.1 | 25 | 000000000 | 00000 |
3/8" | |||||||||
5" | 0.563" | 0.25" | 7 | Partially Threaded | 3.333" | ASME B18.2.1 | 25 | 000000000 | 00000 |
1/2" | |||||||||
5" | 0.75" | 0.344" | 6 | Partially Threaded | 3.333" | ASME B18.2.1 | 10 | 000000000 | 00000 |
5/8" | |||||||||
5" | 0.938" | 0.422" | 5 | Partially Threaded | 3.333" | ASME B18.2.1 | 5 | 000000000 | 0000 |
3/4" | |||||||||
5" | 1.125" | 0.5" | 4.5 | Partially Threaded | 3.333" | ASME B18.2.1 | 5 | 000000000 | 00000 |
Hot-Dipped Galvanized Steel | |||||||||
1/4" | |||||||||
5" | 0.438" | 0.172" | 10 | Partially Threaded | 3.333" | ASME B18.2.1, ASTM A307, SAE J429 | 25 | 000000000 | 0000 |
5/16" | |||||||||
5" | 0.5" | 0.219" | 9 | Partially Threaded | 3.333" | ASME B18.2.1, ASTM A307, SAE J429 | 25 | 000000000 | 00000 |
3/8" | |||||||||
5" | 0.563" | 0.25" | 7 | Partially Threaded | 3.333" | ASME B18.2.1, ASTM A307, SAE J429 | 10 | 000000000 | 0000 |
1/2" | |||||||||
5" | 0.75" | 0.344" | 6 | Partially Threaded | 3.333" | ASME B18.2.1, ASTM A307, SAE J429 | 10 | 000000000 | 00000 |
5/8" | |||||||||
5" | 0.938" | 0.422" | 5 | Partially Threaded | 3.333" | ASME B18.2.1, ASTM A307, SAE J429 | 5 | 000000000 | 00000 |
3/4" | |||||||||
5" | 1.125" | 0.5" | 4.5 | Partially Threaded | 3.333" | ASME B18.2.1, ASTM A307, SAE J429 | 1 | 000000000 | 0000 |
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 | |||||||||
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Lg. | Wd. | Ht. | Approximate Threads per Inch | Threading | Minimum Thread Lg. | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
1/4" | |||||||||
5" | 0.438" | 0.172" | 10 | Partially Threaded | 3.333" | ASME B18.2.1 | 10 | 000000000 | 00000 |
5/16" | |||||||||
5" | 0.5" | 0.219" | 9 | Partially Threaded | 3.333" | ASME B18.2.1 | 5 | 000000000 | 0000 |
3/8" | |||||||||
5" | 0.563" | 0.25" | 7 | Partially Threaded | 3.333" | ASME B18.2.1 | 5 | 000000000 | 0000 |
1/2" | |||||||||
5" | 0.75" | 0.344" | 6 | Partially Threaded | 3.333" | ASME B18.2.1 | 1 | 000000000 | 0000 |
5/8" | |||||||||
5" | 0.938" | 0.422" | 5 | Partially Threaded | 3.333" | ASME B18.2.1 | 1 | 000000000 | 00000 |
3/4" | |||||||||
5" | 1.125" | 0.5" | 4.5 | Partially Threaded | 3.333" | ASME B18.2.1 | 1 | 000000000 | 00000 |
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 | |||||||||
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Lg. | Wd. | Ht. | Approximate Threads per Inch | Threading | Minimum Thread Lg. | Specifications Met | Pkg. Qty. | Pkg. | |
316 Stainless Steel | |||||||||
1/4" | |||||||||
5" | 0.438" | 0.172" | 10 | Partially Threaded | 3.333" | ASME B18.2.1 | 5 | 000000000 | 00000 |
5/16" | |||||||||
5" | 0.5" | 0.219" | 9 | Partially Threaded | 3.333" | ASME B18.2.1 | 1 | 000000000 | 0000 |
3/8" | |||||||||
5" | 0.563" | 0.25" | 7 | Partially Threaded | 3.333" | ASME B18.2.1 | 1 | 000000000 | 0000 |
1/2" | |||||||||
5" | 0.75" | 0.344" | 6 | Partially Threaded | 3.333" | ASME B18.2.1 | 1 | 000000000 | 0000 |
5/8" | |||||||||
5" | 0.938" | 0.422" | 5 | Partially Threaded | 3.333" | ASME B18.2.1 | 1 | 000000000 | 00000 |
3/4" | |||||||||
5" | 1.125" | 0.5" | 4.5 | Partially Threaded | 3.333" | ASME B18.2.1 | 1 | 000000000 | 00000 |
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 | ||||||||||
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Lg. | Wd. | Ht. | Flange Dia. | Approximate Threads per Inch | Threading | Minimum Thread Lg. | Specifications Met | Pkg. Qty. | Pkg. | |
Hot-Dipped Galvanized Steel | ||||||||||
3/8" | ||||||||||
5" | 0.563" | 0.39" | 0.81" | 7 | Partially Threaded | 3" | ASTM A153 | 5 | 000000000 | 00000 |
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.
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 | ||||||||||
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Lg. | Dia. | Ht. | Drive Size | Drill Bit Size | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | ||||||||||
No. 12 | ||||||||||
5" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | Partially Threaded | 3.3" | 10 | 000000000 | 000000 |
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 | ||||||||||
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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 | ||||||||||
5" | 0.342" | 3/16" | No. 2 | 5/64" | 9 | Partially Threaded | 1.65" | 35 | 000000000 | 000000 |
Drive these into wood with an adjustable wrench, pliers, or a special driver bit (sold separately). Zinc yellow-chromate plating provides corrosion resistance in wet environments and meets ASTM B633 specifications for quality. Dimensions meet ASME B18.2.1 specifications.
For technical drawings and 3-D models, click on a part number.
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.
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) | ||||||||
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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 3/8" | 5" | Not Rated | Not Rated | 5 | 000000000 | 00000 |
3/8" | 3" | 3/8"-16 | 1 3/8" | 5" | Not Rated | Not Rated | 1 | 000000000 | 0000 |
5/16" | 3" | 5/16"-18 | 1 1/4" | 5" | Not Rated | Not Rated | 5 | 000000000 | 00000 |
1/2" | 3" | 1/2"-13 | 2" | 5" | Not Rated | Not Rated | 1 | 000000000 | 0000 |