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For Use In For Use In |
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Screw Features Screw Features |
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| Flanged | Sealing |
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| With Washer | Cutting Wings |
Drive Style Drive Style |
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| External Hex | Phillips |
Threading Threading |
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 | Fully Threaded |
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Maximum Drilling Thickness Maximum Drilling Thickness |
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Drill Tip Length Drill Tip Length |
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Head Height Head Height |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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About Tapping Screws
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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. | |
Corrosion-Resistant-Coated 18-8 Stainless Steel | ||||||||||||||
No. 10 | ||||||||||||||
| 2" | No. 2 | 7/32" | 0.177" | 0.313" | 0.163" | 0.432" | __ | 16 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 000000 |
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 | 0000 |
| 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 | 00000 |
| 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 | 00000 |
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 | 00000 |
| 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 | 00000 |
| 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 | 00000 |
| 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 | 00000 |
| 1 1/2" | No. 5 | 35/64" | 1/2" | 0.313" | 0.198" | 0.432" | __ | 14 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 00000 |
| 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" | __ | 14 | Fully Threaded | __ | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 00000 |
| 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 | 00000 |
| 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 | 00000 |
| 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 |
| 8" | No. 5 | 45/64" | 1/2" | 0.375" | 0.237" | 0.52" | 1/4"-20 | __ | Partially Threaded | 1 1/2" | Steel, Stainless Steel, Sheet Metal | 5 | 000000000 | 00000 |
18-8 Stainless Steel Phillips Rounded Head Drilling Screws for Metal
18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. They save you time and effort by drilling their own holes and fastening in a single operation. They have a hardened steel drill point to penetrate steel. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Drill Tip | Head | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Type | Lg. | Max. Drilling Thick. | Dia. | Ht. | Drive Size | Approximate Threads per Inch | For Use In | Pkg. Qty. | Pkg. | |
Corrosion-Resistant-Coated 18-8 Stainless Steel | |||||||||||
No. 6 | |||||||||||
| 5/8" | No. 2 | 7/64" | 0.091" | 0.272" | 0.102" | No. 2 | 20 | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 00000 |
| 3/4" | No. 2 | 7/64" | 0.091" | 0.272" | 0.102" | No. 2 | 20 | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 00000 |
No. 8 | |||||||||||
| 1/2" | No. 2 | 3/16" | 0.098" | 0.322" | 0.089" | No. 2 | 18 | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 0000 |
| 5/8" | No. 2 | 7/64" | 0.102" | 0.322" | 0.115" | No. 2 | 18 | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 00000 |
| 3/4" | No. 2 | 3/16" | 0.098" | 0.322" | 0.089" | No. 2 | 18 | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 00000 |
| 7/8" | No. 3 | 9/64" | 0.126" | 0.322" | 0.115" | No. 2 | 18 | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 00000 |
| 1" | No. 3 | 9/64" | 0.126" | 0.322" | 0.115" | No. 2 | 18 | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 00000 |
| 1 1/4" | No. 3 | 9/64" | 0.126" | 0.322" | 0.115" | No. 2 | 18 | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 00000 |
| 1 1/2" | No. 3 | 9/64" | 0.126" | 0.322" | 0.115" | No. 2 | 18 | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
No. 10 | |||||||||||
| 5/8" | No. 1 | 7/64" | 0.098" | 0.373" | 0.133" | No. 2 | 16 | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 00000 |
| 3/4" | No. 3 | 1/4" | 0.106" | 0.373" | 0.11" | No. 2 | 16 | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 00000 |
| 7/8" | No. 3 | 11/64" | 0.177" | 0.373" | 0.133" | No. 2 | 16 | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 00000 |
| 1" | No. 3 | 1/4" | 0.106" | 0.373" | 0.11" | No. 2 | 16 | Steel, Stainless Steel, Sheet Metal | 25 | 000000000 | 00000 |
| 1 1/4" | No. 3 | 11/64" | 0.177" | 0.373" | 0.133" | No. 2 | 16 | Steel, Stainless Steel, Sheet Metal | 10 | 000000000 | 0000 |
Steel Drilling Screws with Corrosion-Resistant Head and Washer for Metal
These steel screws have a head encapsulated by chemical-resistant 18-8 stainless steel. A rubber-bonded washer compresses to form a watertight seal. They save you time and effort by drilling their own holes and fastening in a single operation. Length is measured from under the head.
For technical drawings and 3-D models, click on a part number.
Drill Tip | Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Type | Lg. | Max. Drilling Thick. | Wd. | Ht. | Washer OD | Thread Size | Approximate Threads per Inch | For Use In | Pkg. Qty. | Pkg. | |
Steel with 18-8 Stainless Steel Head Cap | ||||||||||||
No. 12 | ||||||||||||
| 1" | No. 2 | 1/2" | 0.14" | 0.313" | 0.35" | 0.438" | __ | 14 | Steel, Sheet Metal | 25 | 000000000 | 000000 |
| 1 1/4" | No. 2 | 1/2" | 0.14" | 0.313" | 0.35" | 0.438" | __ | 14 | Steel, Sheet Metal | 25 | 000000000 | 00000 |
| 1 1/2" | No. 2 | 1/2" | 0.14" | 0.313" | 0.35" | 0.438" | __ | 14 | Steel, Sheet Metal | 25 | 000000000 | 00000 |
| 2" | No. 5 | 45/64" | 0.5" | 0.313" | 0.35" | 0.438" | 12-24 | __ | Steel, Sheet Metal | 10 | 000000000 | 00000 |
1/4" | ||||||||||||
| 7/8" | No. 1 | 5/16" | 0.048" | 0.313" | 0.35" | 0.438" | __ | 14 | Steel, Sheet Metal | 25 | 000000000 | 00000 |
| 1 1/8" | No. 1 | 5/16" | 0.048" | 0.313" | 0.35" | 0.438" | __ | 14 | Steel, Sheet Metal | 25 | 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 |
| 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 |