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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 |
Screws for Joining Sheet Metal to Wood
Able to penetrate overlapping sheets, these screws have a secure hold in wood. The hex head allows for a firm grip with a wrench, while a rubber washer provides a watertight seal. They're corrosion-resistant-coated steel to resist corrosion in wet environments and minimize reactions between dissimilar metals. Length is measured from under the washer.
Head | ||||||||
|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | Washer OD | Drill Bit Size | Approximate Threads per Inch | Pkg. Qty. | Pkg. | |
Corrosion-Resistant-Coated Steel | ||||||||
No. 9 | ||||||||
| 1" | 0.25" | 0.16" | 0.472" | __ | 15 | 100 | 000000000 | 000000 |
| 1 1/2" | 0.25" | 0.16" | 0.472" | __ | 15 | 50 | 000000000 | 0000 |
| 2" | 0.25" | 0.16" | 0.472" | __ | 15 | 50 | 000000000 | 0000 |
| 2 1/2" | 0.25" | 0.16" | 0.472" | __ | 15 | 50 | 000000000 | 00000 |
| 3" | 0.25" | 0.16" | 0.472" | __ | 15 | 25 | 000000000 | 0000 |
No. 10 | ||||||||
| 1" | 0.25" | 0.169" | 0.45" | No. 21 | 16 | 100 | 000000000 | 0000 |
| 2 1/2" | 0.25" | 0.169" | 0.45" | No. 21 | 12 | 50 | 000000000 | 0000 |
| 3" | 0.25" | 0.169" | 0.45" | No. 21 | 12 | 50 | 000000000 | 0000 |
No. 14 | ||||||||
| 1 1/2" | 0.313" | 0.15" | 0.593" | __ | 10 | 25 | 000000000 | 0000 |
Stainless Steel Hex Head Screws for Joining Plastic to Wood
18-8 stainless steel screws have good chemical resistance. They have a hex head for a secure grip with a wrench. Cutting wings under the head allow plastic to expand and contract without cracking. A washer made from aluminum and rubber bonded to steel adds a watertight seal. Length is measured from under the head.
Head | Washer | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Wd. | Ht. | OD | Thick. | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||||
No. 12 | ||||||||||
| 1 1/4" | 0.25" | 0.136" | 0.551" | 0.13" | 11 | Partially Threaded | 1" | 25 | 000000000 | 000000 |
| 1 3/4" | 0.25" | 0.136" | 0.551" | 0.13" | 11 | Partially Threaded | 1 1/4" | 25 | 000000000 | 00000 |
| 2" | 0.25" | 0.136" | 0.551" | 0.13" | 11 | Partially Threaded | 1 1/4" | 25 | 000000000 | 00000 |
Steel Hex Head Screws for Joining Plastic to Wood
These steel screws are zinc plated to resist corrosion in wet environments. They have a hex head for a secure grip with a wrench. Cutting wings under the head allow plastic to expand and contract without cracking. A washer made from aluminum and rubber bonded to steel adds a watertight seal. Length is measured from under the head.
Rounded Head Screws for Joining Plastic to Wood
Cutting wings under the head allow plastic to expand and contract without cracking. A washer made from aluminum and rubber bonded to steel adds a watertight seal. They’re zinc-plated steel to resist corrosion in wet environments. Length is measured from under the head.