System of Measurement System of Measurement |
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Head Type Head Type |
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 | Flat |
For Use In For Use In |
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Material Material |
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Tapping Method Tapping Method |
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| Thread Forming | Thread Cutting |
Tapping Screw Type Tapping Screw Type |
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 | 17 |
Finish Finish |
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Threading Threading |
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 | Fully Threaded |
 | Partially Threaded |
Flat Head Profile Flat Head Profile | Show |
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Thread Direction Thread Direction |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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About Tapping Screws
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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. 7 | ||||||||||
| 1" | 0.23" | 0.125" | No. 1 | 1/16" | 16 | Partially Threaded | 1/2" | 50 | 000000000 | 000000 |
| 1 5/8" | 0.23" | 0.125" | No. 1 | 1/16" | 16 | Partially Threaded | 13/16" | 50 | 000000000 | 00000 |
| 2" | 0.23" | 0.125" | No. 1 | 1/16" | 16 | Partially Threaded | 1" | 50 | 000000000 | 00000 |
| 2 1/4" | 0.23" | 0.125" | No. 1 | 1/16" | 16 | Partially Threaded | 1 1/8" | 50 | 000000000 | 00000 |
| 2 1/2" | 0.23" | 0.125" | No. 1 | 1/16" | 16 | Partially Threaded | 1 1/4" | 50 | 000000000 | 00000 |
| 3" | 0.23" | 0.125" | No. 1 | 1/16" | 16 | Partially Threaded | 1 1/2" | 25 | 000000000 | 00000 |
No. 9 | ||||||||||
| 4" | 0.25" | 0.125" | No. 2 | 5/64" | 14 | Partially Threaded | 2" | 10 | 000000000 | 00000 |
Super-Corrosion-Resistant 316 Stainless Steel Thread-Cutting
Small-Head 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. 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. | |
316 Stainless Steel | ||||||||||
No. 7 | ||||||||||
| 1 5/8" | 0.23" | 0.125" | No. 1 | 1/16" | 16 | Partially Threaded | 13/16" | 50 | 000000000 | 00000 |
| 2 1/4" | 0.23" | 0.125" | No. 1 | 1/16" | 16 | Partially Threaded | 1 1/8" | 25 | 000000000 | 0000 |
| 3" | 0.23" | 0.125" | No. 1 | 1/16" | 16 | Partially Threaded | 1 1/2" | 25 | 000000000 | 00000 |
Steel Thread-Cutting Small-Head Screws for
Softwood and Plastic-Wood Composites
Because these steel screws cut threads into drilled holes as they’re turned, they require less driving torque and cause less stress on material than thread-forming screws. Also known as trim-head deck screws, they have a small flat head and slender shank to reduce the risk of splitting boards. Their thin head also means they won't stick out of decking, trim, and other finished surfaces. With a corrosion-resistant coating, these screws resist up to 1,500 hours of salt spray. They're green, so they blend in with most treated wood.
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. 8 | ||||||||||
| 2" | 0.256" | 0.125" | T-15 | 1/8" | 10 | Partially Threaded | 1.4" | 50 | 000000000 | 000000 |
| 2 1/2" | 0.256" | 0.125" | T-15 | 1/8" | 10 | Partially Threaded | 1.67" | 50 | 000000000 | 00000 |
| 3" | 0.256" | 0.125" | T-15 | 1/8" | 10 | Partially Threaded | 2.07" | 25 | 000000000 | 00000 |
| 3 1/2" | 0.256" | 0.125" | T-15 | 1/8" | 10 | Partially Threaded | 2.42" | 25 | 000000000 | 00000 |
Thread-Forming Small-Head Screws for Softwood and Plastic-Wood Composites
Thread-forming screws press threads into drilled holes for a tight, vibration-resistant assembly. Also known as trim-head deck screws, they have a small flat head and slender shank to reduce the risk of splitting. The sharp point and narrow body penetrates softwood and plastic-wood composite decking material. Made from steel, they have a black-phosphate finish to resist corrosion in wet 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 | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
Black-Phosphate Steel | ||||||||||
No. 6 | ||||||||||
| 1 5/8" | 0.224" | 0.135" | No. 1 | 1/16" | 18 | Partially Threaded | 13/16" | 100 | 000000000 | 000000 |
| 2 1/4" | 0.224" | 0.135" | No. 1 | 1/16" | 18 | Partially Threaded | 1 1/8" | 100 | 000000000 | 00000 |
No. 8 | ||||||||||
| 3" | 0.264" | 0.155" | No. 2 | 5/64" | 15 | Partially Threaded | 1 1/2" | 50 | 000000000 | 00000 |
Square-Drive Small-Head Screws for Joining Drywall to Metal Framing
Use these screws to attach drywall to metal studs up to 0.036" thick. Heads are one-third smaller than those of other drywall screws. 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.
Phillips Small-Head Screws for Joining Drywall to Metal Framing
Attach drywall to metal studs up to 0.036" thick. Heads are one-third smaller than those of other drywall screws. These screws are 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.
Square-Drive Small-Head Drilling Screws for Joining Drywall to Metal Framing
These screws have a drill point that powers through drywall and into metal studs up to 0.105" thick. Heads are one-third smaller than those of other drywall screws. Screws are 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.
Phillips Small-Head Drilling Screws for Joining Drywall to Metal Framing
A drill point powers through drywall and into metal studs up to 0.105" thick. Heads are one-third smaller than those of other drywall screws. Screws are 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.