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18-8 Stainless Steel Hex Head Drilling Screws with Hardened Steel Tip for Metal
These 18-8 stainless steel screws have a hardened steel drill point to penetrate steel and are coated to increase corrosion resistance. All have a hex head for a secure grip with a wrench and a flange to reduce the risk of crushing thin metal. They save you time and effort by drilling their own holes and fastening in a single operation. Length is measured from under the flange. Head height includes the flange.
For technical drawings and 3-D models, click on a part number.
Drill Tip | Head | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Type | Lg. | Max. Drilling Thick. | Wd. | Ht. | Flange Dia. | Thread Size  | Approximate Threads per Inch | Threading | Min. Thread Lg. | For Use In | Pkg. Qty. | Pkg. | |
Galvanic-Barrier Coated 18-8 Stainless Steel | ||||||||||||||
No. 8 | ||||||||||||||
| 1/2" | No. 2 | 3/32" | 0.098" | 0.25" | 0.141" | 0.348" | __ | 18 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 00000 |
| 3/4" | No. 2 | 3/32" | 0.098" | 0.25" | 0.141" | 0.348" | __ | 18 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 0000 |
| 1" | No. 2 | 3/32" | 0.098" | 0.25" | 0.141" | 0.348" | __ | 18 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 0000 |
| 1 1/4" | No. 2 | 3/32" | 0.098" | 0.25" | 0.141" | 0.348" | __ | 18 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 0000 |
No. 10 | ||||||||||||||
| 3/4" | No. 2 | 13/64" | 0.106" | 0.313" | 0.16" | 0.4" | __ | 16 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 3/4" | No. 3 | 11/64" | 0.15" | 0.313" | 0.193" | 0.414" | __ | 16 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 0000 |
| 1" | No. 2 | 7/32" | 0.11" | 0.313" | 0.157" | 0.4" | __ | 16 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 1" | No. 3 | 7/32" | 0.15" | 0.313" | 0.193" | 0.414" | __ | 16 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 0000 |
| 1 1/4" | No. 3 | 7/32" | 0.15" | 0.313" | 0.193" | 0.414" | __ | 16 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 1 1/2" | No. 2 | 13/64" | 0.106" | 0.313" | 0.16" | 0.414" | __ | 16 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
No. 12 | ||||||||||||||
| 3/4" | No. 3 | 3/16" | 0.187" | 0.313" | 0.194" | 0.432" | __ | 14 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 1" | No. 2 | 1/4" | 0.14" | 0.313" | 0.2" | 0.415" | __ | 14 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 1" | No. 3 | 7/32" | 0.187" | 0.313" | 0.194" | 0.432" | __ | 14 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 1 1/4" | No. 4 | 5/16" | 0.21" | 0.313" | 0.198" | 0.432" | 12-24 | __ | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 1 1/2" | No. 2 | 1/4" | 0.14" | 0.313" | 0.2" | 0.415" | __ | 14 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 1 1/2" | No. 3 | 9/32" | 0.187" | 0.313" | 0.194" | 0.432" | __ | 14 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 1 1/2" | No. 5 | 35/64" | 1/2" | 0.313" | 0.198" | 0.432" | 12-24 | __ | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 2" | No. 2 | 1/4" | 0.14" | 0.313" | 0.2" | 0.415" | __ | 14 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 00000 |
| 2" | No. 5 | 35/64" | 1/2" | 0.313" | 0.198" | 0.432" | 12-24 | __ | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 2 1/2" | No. 3 | 9/32" | 0.187" | 0.313" | 0.2" | 0.415" | __ | 14 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 00000 |
1/4" | ||||||||||||||
| 1" | No. 2 | 5/16" | 0.155" | 0.375" | 1/4" | 1/2" | __ | 14 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 00000 |
| 1" | No. 3 | 5/16" | 0.21" | 0.375" | 0.238" | 0.52" | __ | 14 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
| 1" | No. 3 | 5/16" | 0.21" | 0.375" | 1/4" | 1/2" | 1/4"-20 | __ | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 00000 |
| 1 1/2" | No. 2 | 5/16" | 0.155" | 0.375" | 1/4" | 1/2" | __ | 14 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 00000 |
| 1 1/2" | No. 3 | 5/16" | 0.21" | 0.375" | 1/4" | 1/2" | 1/4"-20 | __ | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 00000 |
| 1 1/2" | No. 5 | 19/32" | 1/2" | 0.375" | 0.247" | 1/2" | 1/4"-20 | __ | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 5 | 000000000 | 0000 |
| 2" | No. 2 | 5/16" | 0.155" | 0.375" | 1/4" | 1/2" | __ | 14 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 00000 |
| 2" | No. 3 | 5/16" | 0.21" | 0.375" | 0.237" | 0.52" | 1/4"-20 | __ | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 00000 |
| 2" | No. 5 | 45/64" | 1/2" | 0.375" | 0.237" | 0.52" | 1/4"-20 | __ | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 00000 |
| 2 1/2" | No. 3 | 5/16" | 0.21" | 0.375" | 1/4" | 1/2" | 1/4"-20 | __ | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 5 | 000000000 | 00000 |
| 3" | No. 3 | 5/16" | 0.21" | 0.375" | 0.237" | 0.52" | 1/4"-20 | __ | Partially Threaded | 1 1/2" | Steel, Stainless Steel, Sheet Metal | 5 | 000000000 | 00000 |
| 3" | No. 5 | 19/32" | 1/2" | 0.375" | 0.247" | 1/2" | 1/4"-20 | __ | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 5 | 000000000 | 0000 |
| 4" | No. 3 | 5/16" | 0.21" | 0.375" | 0.237" | 0.52" | 1/4"-20 | __ | Partially Threaded | 1 1/2" | Steel, Stainless Steel, Sheet Metal | 5 | 000000000 | 00000 |
| 4" | No. 5 | 19/32" | 1/2" | 0.375" | 0.247" | 1/2" | 1/4"-20 | __ | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 5 | 000000000 | 00000 |
| 5" | No. 5 | 19/32" | 1/2" | 0.375" | 0.247" | 1/2" | 1/4"-20 | __ | Partially Threaded | __ | Steel, Stainless Steel, Sheet Metal | 1 | 000000000 | 0000 |
| 6" | No. 5 | 19/32" | 1/2" | 0.375" | 0.247" | 1/2" | 1/4"-20 | __ | Partially Threaded | __ | Steel, Stainless Steel, Sheet Metal | 1 | 000000000 | 0000 |
Stainless Steel Hex Head Drilling Screws for Aluminum
Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. Use them to fasten aluminum to aluminum and steel framing. The hex head allows for a secure grip with a wrench and a flange reduces the risk of crushing thin metal. They save you time and effort by drilling their own holes and fastening in a single operation. Length is measured from under the flange. Head height includes the flange.
For technical drawings and 3-D models, click on a part number.
Drill Tip | Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Type | Lg. | Max. Drilling Thick. | Wd. | Ht. | Flange Dia. | Thread Size | Approximate Threads per Inch | For Use In | Pkg. Qty. | Pkg. | |
Galvanic Barrier Coated 18-8 Stainless Steel | ||||||||||||
No. 8 | ||||||||||||
| 1/2" | No. 2 | 3/16" | 0.098" | 0.25" | 0.141" | 0.348" | __ | 18 | Aluminum, Sheet Metal | 25 | 000000000 | 000000 |
| 3/4" | No. 2 | 3/16" | 0.098" | 0.25" | 0.141" | 0.348" | __ | 18 | Aluminum, Sheet Metal | 25 | 000000000 | 00000 |
No. 10 | ||||||||||||
| 3/4" | No. 3 | 1/4" | 0.15" | 0.313" | 0.151" | 0.414" | __ | 16 | Aluminum, Sheet Metal | 25 | 000000000 | 00000 |
| 1" | No. 3 | 1/4" | 0.15" | 0.313" | 0.151" | 0.414" | __ | 16 | Aluminum, Sheet Metal | 25 | 000000000 | 00000 |
No. 12 | ||||||||||||
| 3/4" | No. 3 | 9/32" | 0.187" | 0.313" | 0.194" | 0.432" | __ | 14 | Aluminum, Sheet Metal | 25 | 000000000 | 00000 |
| 1" | No. 3 | 9/32" | 0.187" | 0.313" | 0.194" | 0.432" | __ | 14 | Aluminum, Sheet Metal | 25 | 000000000 | 00000 |
| 1 1/4" | No. 3 | 9/32" | 0.187" | 0.313" | 0.194" | 0.432" | __ | 14 | Aluminum, Sheet Metal | 10 | 000000000 | 00000 |
| 1 1/2" | No. 3 | 9/32" | 0.187" | 0.313" | 0.194" | 0.432" | __ | 14 | Aluminum, Sheet Metal | 25 | 000000000 | 00000 |
| 2" | No. 3 | 9/32" | 0.187" | 0.313" | 0.194" | 0.432" | __ | 14 | Aluminum, Sheet Metal | 5 | 000000000 | 0000 |
| 2 1/2" | No. 3 | 9/32" | 0.187" | 0.313" | 0.194" | 0.432" | __ | 14 | Aluminum, Sheet Metal | 5 | 000000000 | 0000 |
| 3" | No. 3 | 9/32" | 0.187" | 0.313" | 0.194" | 0.432" | __ | 14 | Aluminum, Sheet Metal | 5 | 000000000 | 00000 |
1/4" | ||||||||||||
| 3/4" | No. 3 | 5/16" | 0.21" | 0.375" | 0.24" | 0.52" | __ | 14 | Aluminum, Sheet Metal | 25 | 000000000 | 00000 |
| 1" | No. 3 | 5/16" | 0.21" | 0.375" | 0.24" | 0.52" | __ | 14 | Aluminum, Sheet Metal | 25 | 000000000 | 00000 |
| 1" | No. 4 | 5/16" | 0.236" | 0.375" | 0.24" | 0.52" | 1/4"-20 | __ | Aluminum, Sheet Metal | 10 | 000000000 | 00000 |
| 1 1/2" | No. 3 | 5/16" | 0.21" | 0.375" | 0.24" | 0.52" | __ | 14 | Aluminum, Sheet Metal | 10 | 000000000 | 00000 |
| 1 1/2" | No. 4 | 5/16" | 0.236" | 0.375" | 0.24" | 0.52" | 1/4"-20 | __ | Aluminum, Sheet Metal | 10 | 000000000 | 00000 |
Stainless Steel Phillips Drilling Screws for Joining Wood to Metal
18-8 stainless steel screws have good chemical resistance and are a good choice for ACQ-treated (arsenic-free) lumber. They speed installation by drilling, tapping, and fastening wood and metal in a single operation. Length is measured from the top of the head.
Screws with cutting wings drill a slightly larger hole in the wood to allow for expansion. The wings break off when they contact metal, so the screw can tap the remainder of the hole.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Screw Features | Drill Point Size | Drill Tip Lg. | Dia. | Ht. | Drive Size | Thread Size | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
Galvanic Barrier Coated 18-8 Stainless Steel | |||||||||||||
No. 10 | |||||||||||||
| 1 1/2" | Cutting Wings | No. 3 | 1/4" | 0.37" | 0.178" | No. 2 | __ | 16 | Fully Threaded | __ | 10 | 000000000 | 000000 |
No. 12 | |||||||||||||
| 1" | __ | No. 2 | 19/64" | 0.415" | 0.09" | No. 3 | __ | 14 | Fully Threaded | __ | 10 | 000000000 | 0000 |
| 1 1/2" | __ | No. 2 | 19/64" | 0.415" | 0.09" | No. 3 | __ | 14 | Fully Threaded | __ | 10 | 000000000 | 00000 |
| 2 13/16" | Cutting Wings | No. 5 | 45/64" | 0.415" | 0.2" | No. 3 | __ | 14 | Partially Threaded | 1 1/2" | 5 | 000000000 | 0000 |
1/4" | |||||||||||||
| 2 13/16" | Cutting Wings | No. 5 | 45/64" | 0.48" | 0.2" | No. 3 | 1/4"-20 | __ | Partially Threaded | 1 1/2" | 5 | 000000000 | 00000 |
| 3" | __ | No. 3 | 5/16" | 0.48" | 0.1" | No. 3 | 1/4"-20 | __ | Partially Threaded | 1 1/2" | 5 | 000000000 | 00000 |
| 4" | __ | No. 3 | 5/16" | 0.48" | 0.1" | No. 3 | 1/4"-20 | __ | Partially Threaded | 1 1/2" | 5 | 000000000 | 00000 |