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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.
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. 6 | ||||||||||
| 5/8" | 0.344" | 0.197" | No. 2 | 1/16" | 9 | Partially Threaded | 0.413" | 100 | 000000000 | 000000 |
| 3/4" | 0.344" | 0.197" | No. 2 | 1/16" | 9 | Partially Threaded | 0.495" | 100 | 000000000 | 00000 |
| 1" | 0.344" | 0.197" | No. 2 | 1/16" | 9 | Partially Threaded | 0.66" | 100 | 000000000 | 00000 |
| 1 1/4" | 0.344" | 0.197" | No. 2 | 1/16" | 9 | Partially Threaded | 0.825" | 100 | 000000000 | 00000 |
| 1 1/2" | 0.344" | 0.197" | No. 1 | 1/16" | 18 | Partially Threaded | 1" | 100 | 000000000 | 00000 |
| 1 5/8" | 0.344" | 0.197" | No. 2 | 1/16" | 9 | Partially Threaded | 1.073" | 100 | 000000000 | 00000 |
| 2" | 0.344" | 0.197" | No. 1 | 1/16" | 18 | Partially Threaded | 1 1/4" | 100 | 000000000 | 00000 |
No. 8 | ||||||||||
| 3/4" | 0.344" | 0.192" | No. 2 | 5/64" | 8 | Partially Threaded | 0.495" | 100 | 000000000 | 00000 |
| 1" | 0.344" | 0.192" | No. 2 | 5/64" | 15 | Partially Threaded | 3/4" | 100 | 000000000 | 0000 |
| 1 1/4" | 0.344" | 0.192" | No. 2 | 5/64" | 8 | Partially Threaded | 0.825" | 100 | 000000000 | 00000 |
| 1 1/2" | 0.344" | 0.192" | No. 2 | 5/64" | 15 | Partially Threaded | 1" | 100 | 000000000 | 00000 |
| 1 5/8" | 0.344" | 0.192" | No. 2 | 5/64" | 8 | Partially Threaded | 1.073" | 50 | 000000000 | 00000 |
| 1 3/4" | 0.344" | 0.192" | No. 2 | 5/64" | 15 | Partially Threaded | 1 3/16" | 100 | 000000000 | 00000 |
| 2" | 0.344" | 0.192" | No. 2 | 5/64" | 8 | Partially Threaded | 1.32" | 50 | 000000000 | 00000 |
| 2 1/2" | 0.344" | 0.192" | No. 2 | 5/64" | 8 | Partially Threaded | 1.65" | 50 | 000000000 | 00000 |
| 2 3/4" | 0.344" | 0.192" | No. 2 | 5/64" | 15 | Partially Threaded | 1 27/32" | 50 | 000000000 | 00000 |
| 3" | 0.344" | 0.192" | No. 2 | 5/64" | 8 | Partially Threaded | 1.98" | 50 | 000000000 | 00000 |
No. 10 | ||||||||||
| 1" | 0.344" | 0.189" | No. 2 | 3/32" | 8 | Partially Threaded | 0.66" | 100 | 000000000 | 00000 |
| 1 1/4" | 0.344" | 0.189" | No. 2 | 3/32" | 8 | Partially Threaded | 0.825" | 100 | 000000000 | 00000 |
| 1 1/2" | 0.344" | 0.189" | No. 2 | 3/32" | 8 | Partially Threaded | 0.99" | 50 | 000000000 | 00000 |
| 1 5/8" | 0.344" | 0.189" | No. 2 | 3/32" | 13 | Partially Threaded | 1 1/8" | 50 | 000000000 | 00000 |
| 1 3/4" | 0.344" | 0.189" | No. 2 | 3/32" | 8 | Partially Threaded | 1.155" | 50 | 000000000 | 00000 |
| 2" | 0.344" | 0.189" | No. 2 | 3/32" | 8 | Partially Threaded | 1.32" | 50 | 000000000 | 00000 |
| 2 1/4" | 0.344" | 0.189" | No. 2 | 3/32" | 13 | Partially Threaded | 1 1/2" | 50 | 000000000 | 00000 |
| 2 1/2" | 0.344" | 0.189" | No. 2 | 3/32" | 8 | Partially Threaded | 1.65" | 25 | 000000000 | 00000 |
| 2 3/4" | 0.344" | 0.189" | No. 2 | 3/32" | 13 | Partially Threaded | 1 27/32" | 25 | 000000000 | 0000 |
| 3" | 0.344" | 0.189" | No. 2 | 3/32" | 8 | Partially Threaded | 1.98" | 25 | 000000000 | 00000 |
| 3 3/4" | 0.344" | 0.189" | No. 2 | 3/32" | 8 | Partially Threaded | 2.475" | 25 | 000000000 | 00000 |
| 4" | 0.344" | 0.189" | No. 2 | 3/32" | 13 | Partially Threaded | 2 3/4" | 25 | 000000000 | 00000 |
No. 12 | ||||||||||
| 2" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | Partially Threaded | 1 1/4" | 25 | 000000000 | 0000 |
| 2 1/2" | 0.43" | 0.203" | No. 3 | 7/64" | 7 | Partially Threaded | 1.65" | 25 | 000000000 | 00000 |
| 4" | 0.43" | 0.203" | No. 3 | 7/64" | 7 | Partially Threaded | 2.64" | 10 | 000000000 | 00000 |
| 4 1/2" | 0.43" | 0.203" | No. 3 | 7/64" | 7 | Partially Threaded | 2.97" | 10 | 000000000 | 00000 |
| 5 1/2" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | Partially Threaded | 3.688" | 10 | 000000000 | 0000 |
| 6" | 0.43" | 0.203" | No. 3 | 7/64" | 7 | Partially Threaded | 3.96" | 10 | 000000000 | 00000 |
No. 14 | ||||||||||
| 2" | 0.43" | 0.25" | No. 3 | 7/64" | 10 | Partially Threaded | 1 1/4" | 25 | 000000000 | 00000 |
| 2 1/2" | 0.43" | 0.25" | No. 3 | 7/64" | 10 | Partially Threaded | 1 3/4" | 10 | 000000000 | 0000 |
| 3" | 0.43" | 0.25" | No. 3 | 7/64" | 10 | Partially Threaded | 2" | 10 | 000000000 | 0000 |
| 3 1/2" | 0.43" | 0.25" | No. 3 | 7/64" | 7 | Partially Threaded | 2.31" | 10 | 000000000 | 00000 |
| 4" | 0.43" | 0.25" | No. 3 | 7/64" | 7 | Partially Threaded | 2.64" | 10 | 000000000 | 00000 |
| 4 1/2" | 0.43" | 0.25" | No. 3 | 7/64" | 10 | Partially Threaded | 2 11/16" | 10 | 000000000 | 00000 |
| 5" | 0.43" | 0.25" | No. 3 | 7/64" | 7 | Partially Threaded | 3.3" | 10 | 000000000 | 00000 |
| 6" | 0.43" | 0.25" | No. 3 | 7/64" | 10 | Partially Threaded | 4" | 5 | 000000000 | 0000 |
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.
Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | Drive Size | Drill Bit Size | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | ||||||||||
No. 6 | ||||||||||
| 1 1/4" | 0.344" | 0.197" | No. 1 | 1/16" | 18 | Partially Threaded | 0.825" | 50 | 000000000 | 00000 |
| 1 5/8" | 0.344" | 0.197" | No. 1 | 1/16" | 18 | Partially Threaded | 1 1/8" | 50 | 000000000 | 0000 |
| 2" | 0.344" | 0.197" | No. 1 | 1/16" | 18 | Partially Threaded | 1 1/4" | 50 | 000000000 | 0000 |
No. 8 | ||||||||||
| 1 1/4" | 0.344" | 0.192" | No. 2 | 5/64" | 15 | Partially Threaded | 0.825" | 50 | 000000000 | 00000 |
| 1 1/2" | 0.344" | 0.192" | No. 2 | 5/64" | 15 | Partially Threaded | 1" | 50 | 000000000 | 0000 |
| 1 5/8" | 0.344" | 0.192" | No. 2 | 5/64" | 15 | Partially Threaded | 1.073" | 50 | 000000000 | 00000 |
| 2" | 0.344" | 0.192" | No. 2 | 5/64" | 15 | Partially Threaded | 1.32" | 50 | 000000000 | 00000 |
| 2 1/4" | 0.344" | 0.192" | No. 2 | 5/64" | 15 | Partially Threaded | 1 1/2" | 50 | 000000000 | 00000 |
| 3" | 0.344" | 0.192" | No. 2 | 5/64" | 15 | Partially Threaded | 2" | 25 | 000000000 | 0000 |
No. 10 | ||||||||||
| 1 5/8" | 0.344" | 0.189" | No. 2 | 3/32" | 13 | Partially Threaded | 1 1/8" | 25 | 000000000 | 0000 |
| 2 1/2" | 0.344" | 0.189" | No. 2 | 3/32" | 13 | Partially Threaded | 1.65" | 25 | 000000000 | 00000 |
| 3" | 0.344" | 0.189" | No. 2 | 3/32" | 13 | Partially Threaded | 1.98" | 25 | 000000000 | 00000 |
| 3 1/2" | 0.344" | 0.189" | No. 2 | 3/32" | 13 | Partially Threaded | 2.31" | 25 | 000000000 | 00000 |
| 4" | 0.344" | 0.189" | No. 2 | 3/32" | 13 | Partially Threaded | 2 3/4" | 10 | 000000000 | 0000 |
No. 12 | ||||||||||
| 2" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | Partially Threaded | 1 1/4" | 10 | 000000000 | 0000 |
| 2 1/2" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | 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 | 00000 |
| 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 | 00000 |
| 5" | 0.43" | 0.203" | No. 3 | 7/64" | 11 | Partially Threaded | 3.3" | 10 | 000000000 | 00000 |
No. 14 | ||||||||||
| 3" | 0.43" | 1/4" | No. 3 | 7/64" | 10 | Partially Threaded | 2" | 10 | 000000000 | 0000 |
| 4" | 0.43" | 1/4" | No. 3 | 7/64" | 10 | Partially Threaded | 2 3/4" | 5 | 000000000 | 0000 |
| 5" | 0.43" | 1/4" | No. 3 | 7/64" | 10 | Partially Threaded | 3 1/4" | 5 | 000000000 | 0000 |
| 6" | 0.43" | 1/4" | No. 3 | 7/64" | 10 | Partially Threaded | 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 corrosion-resistant coating that resists at least 500 hours of salt spray. Length is measured from the top of the head.
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. 6 | ||||||||||
| 1" | 0.328" | 3/16" | No. 2 | 5/64" | 9 | Partially Threaded | 3/4" | 300 | 000000000 | 00000 |
| 1 1/4" | 0.347" | 7/32" | No. 2 | 1/16" | 18 | Fully Threaded | __ | 245 | 000000000 | 0000 |
| 1 5/8" | 0.347" | 7/32" | No. 2 | 1/16" | 18 | Fully Threaded | __ | 200 | 000000000 | 0000 |
No. 7 | ||||||||||
| 2" | 0.323" | 7/32" | No. 2 | 1/16" | 18 | Partially Threaded | 1.32" | 160 | 000000000 | 0000 |
| 2 1/2" | 0.319" | 7/32" | No. 2 | 5/64" | 9 | Partially Threaded | 2" | 35 | 000000000 | 0000 |
No. 8 | ||||||||||
| 2 1/2" | 0.363" | 7/32" | No. 2 | 5/64" | 15 | Partially Threaded | 1.65" | 90 | 000000000 | 0000 |
| 3" | 0.363" | 7/32" | No. 2 | 5/64" | 15 | Partially Threaded | 1.98" | 80 | 000000000 | 0000 |
No. 10 | ||||||||||
| 3 1/2" | 0.363" | 7/32" | No. 2 | 3/32" | 13 | Partially Threaded | 2.31" | 50 | 000000000 | 0000 |
| 4" | 0.363" | 7/32" | No. 2 | 3/32" | 13 | Partially Threaded | 2.64" | 50 | 000000000 | 0000 |
| 5" | 0.342" | 3/16" | No. 2 | 5/64" | 9 | Partially Threaded | 1.65" | 35 | 000000000 | 00000 |
| 6" | 0.342" | 3/16" | No. 2 | 5/64" | 9 | Partially Threaded | 1.65" | 30 | 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.
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" | 0.323" | 0.125" | T20 | 5/32" | 10 | Partially Threaded | 1.38" | 50 | 000000000 | 000000 |
No. 9 | ||||||||||
| 2 1/2" | 0.343" | 0.125" | T25 | 5/32" | 9 | Partially Threaded | 1.63" | 50 | 000000000 | 00000 |
| 3" | 0.343" | 0.125" | T25 | 5/32" | 9 | Partially Threaded | 2" | 25 | 000000000 | 00000 |
No. 10 | ||||||||||
| 3 1/2" | 0.354" | 0.125" | T25 | 5/32" | 8 | Partially Threaded | 2.38" | 25 | 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.
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" | 10 | Partially Threaded | 1/2" | 50 | 000000000 | 000000 |
| 1 5/8" | 0.23" | 0.125" | No. 1 | 1/16" | 10 | Partially Threaded | 13/16" | 50 | 000000000 | 00000 |
| 2" | 0.23" | 0.125" | No. 1 | 1/16" | 10 | Partially Threaded | 1" | 50 | 000000000 | 00000 |
| 2 1/4" | 0.23" | 0.125" | No. 1 | 1/16" | 10 | Partially Threaded | 1 1/8" | 50 | 000000000 | 00000 |
| 2 1/2" | 0.23" | 0.125" | No. 1 | 1/16" | 10 | Partially Threaded | 1 1/4" | 50 | 000000000 | 00000 |
| 3" | 0.23" | 0.125" | No. 1 | 1/16" | 10 | 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 | 0000 |
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.
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 | 000000 |
| 2 1/4" | 0.23" | 0.125" | No. 1 | 1/16" | 16 | Partially Threaded | 1 1/8" | 25 | 000000000 | 00000 |
| 3" | 0.23" | 0.125" | No. 1 | 1/16" | 16 | Partially Threaded | 1 1/2" | 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.
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 |
Sealing Screws for Softwood and Plastic-Wood Composites
The neoprene-backed washer seals out contaminants. Also known as trim-head deck screws, they have a small flat head and slender shank to reduce the risk of splitting. They have a Type 17 auger point to penetrate softwood and plastic-wood composite decking material. 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.
Head | Washer | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Ht. | OD | Thick. | 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" | 0.63" | 0.2" | No. 1 | 1/16" | 16 | Partially Threaded | 7/8" | 25 | 000000000 | 000000 |
| 1 5/8" | 0.23" | 0.125" | 0.63" | 0.2" | No. 1 | 1/16" | 16 | Partially Threaded | 1 1/8" | 25 | 000000000 | 00000 |
| 2 1/4" | 0.23" | 0.125" | 0.63" | 0.2" | No. 1 | 1/16" | 16 | Partially Threaded | 1 1/4" | 10 | 000000000 | 00000 |
| 3" | 0.23" | 0.125" | 0.63" | 0.2" | No. 1 | 1/16" | 16 | Partially Threaded | 2" | 10 | 000000000 | 00000 |