About Tapping Screws
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Oval Head Drilling Screws for Metal

A decorative rounded top provides a finished appearance. These screws are beveled under the head for use in countersunk holes. They save you time and effort by drilling their own holes and fastening in a single operation. Length is measured from the edge of the head.
Black-oxide steel screws are mildly corrosion resistant in dry environments. Zinc-plated steel screws resist corrosion in wet environments. Corrosion-resistant-coated steel screws are more corrosion resistant than zinc-plated screws.
18-8 stainless steel screws have good chemical resistance and may be mildly magnetic.
410 stainless steel screws are stronger and more wear resistant than 18-8 stainless steel screws. They have mild chemical resistance and are mildly magnetic. Not for use with aluminum.
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. | |
Black Oxide Steel | |||||||||||
No. 8 | |||||||||||
3/4" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 100 | 000000000 | 00000 |
1" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 50 | 000000000 | 0000 |
1 1/4" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 50 | 000000000 | 0000 |
1 1/2" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 50 | 000000000 | 0000 |
No. 10 | |||||||||||
3/4" | No. 2 | 5/16" | 0.175" | 0.362" | 0.176" | No. 2 | 16 | Steel, Sheet Metal | 50 | 000000000 | 0000 |
1" | No. 2 | 5/16" | 0.175" | 0.362" | 0.176" | No. 2 | 16 | Steel, Sheet Metal | 50 | 000000000 | 0000 |
1 1/4" | No. 2 | 5/16" | 0.175" | 0.362" | 0.176" | No. 2 | 16 | Steel, Sheet Metal | 50 | 000000000 | 0000 |
Zinc-Plated Steel | |||||||||||
No. 6 | |||||||||||
3/8" | No. 2 | 11/64" | 0.09" | 0.262" | 0.128" | No. 2 | 20 | Steel, Sheet Metal | 100 | 000000000 | 0000 |
1/2" | No. 2 | 11/64" | 0.09" | 0.262" | 0.128" | No. 2 | 20 | Steel, Sheet Metal | 100 | 000000000 | 0000 |
5/8" | No. 2 | 11/64" | 0.09" | 0.262" | 0.128" | No. 2 | 20 | Steel, Sheet Metal | 50 | 000000000 | 0000 |
3/4" | No. 2 | 11/64" | 0.09" | 0.262" | 0.128" | No. 2 | 20 | Steel, Sheet Metal | 100 | 000000000 | 0000 |
1" | No. 2 | 9/64" | 0.09" | 0.279" | 0.128" | No. 2 | 20 | Steel, Sheet Metal | 100 | 000000000 | 0000 |
1 1/4" | No. 2 | 9/64" | 0.09" | 0.279" | 0.128" | No. 2 | 20 | Steel, Sheet Metal | 100 | 000000000 | 00000 |
1 1/2" | No. 2 | 11/64" | 0.09" | 0.262" | 0.128" | No. 2 | 20 | Steel, Sheet Metal | 50 | 000000000 | 0000 |
2" | No. 2 | 11/64" | 0.09" | 0.262" | 0.128" | No. 2 | 20 | Steel, Sheet Metal | 50 | 000000000 | 0000 |
No. 8 | |||||||||||
1/2" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 100 | 000000000 | 0000 |
5/8" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 50 | 000000000 | 0000 |
3/4" | No. 2 | 3/16" | 0.098" | 0.332" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 100 | 000000000 | 0000 |
1" | No. 2 | 3/16" | 0.098" | 0.332" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 100 | 000000000 | 0000 |
1 1/4" | No. 2 | 3/16" | 0.098" | 0.332" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 100 | 000000000 | 0000 |
1 1/2" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 50 | 000000000 | 0000 |
1 3/4" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
2" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 50 | 000000000 | 0000 |
2 1/2" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 50 | 000000000 | 0000 |
3" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
No. 10 | |||||||||||
5/8" | No. 2 | 5/16" | 0.175" | 0.362" | 0.176" | No. 2 | 16 | Steel, Sheet Metal | 50 | 000000000 | 0000 |
3/4" | No. 2 | 13/64" | 0.106" | 0.385" | 0.176" | No. 2 | 16 | Steel, Sheet Metal | 100 | 000000000 | 00000 |
1" | No. 2 | 13/64" | 0.106" | 0.385" | 0.176" | No. 2 | 16 | Steel, Sheet Metal | 100 | 000000000 | 00000 |
1 1/4" | No. 2 | 13/64" | 0.106" | 0.385" | 0.176" | No. 2 | 16 | Steel, Sheet Metal | 100 | 000000000 | 0000 |
1 1/2" | No. 2 | 5/16" | 0.175" | 0.362" | 0.176" | No. 2 | 16 | Steel, Sheet Metal | 50 | 000000000 | 0000 |
2" | No. 2 | 5/16" | 0.175" | 0.362" | 0.176" | No. 2 | 16 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
2 1/2" | No. 2 | 5/16" | 0.175" | 0.362" | 0.176" | No. 2 | 16 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
No. 12 | |||||||||||
1" | No. 3 | 23/64" | 0.21" | 0.412" | 0.2" | No. 3 | 14 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
1 1/4" | No. 3 | 23/64" | 0.21" | 0.412" | 0.2" | No. 3 | 14 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
1 1/2" | No. 3 | 9/32" | 0.21" | 0.412" | 0.2" | No. 3 | 14 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
2" | No. 3 | 23/64" | 0.21" | 0.412" | 0.2" | No. 3 | 14 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
1/4" | |||||||||||
1" | No. 3 | 25/64" | 0.21" | 0.462" | 0.224" | No. 3 | 14 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
1 1/4" | No. 3 | 25/64" | 0.21" | 0.462" | 0.224" | No. 3 | 14 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
1 1/2" | No. 3 | 25/64" | 0.21" | 0.462" | 0.224" | No. 3 | 14 | Steel, Sheet Metal | 10 | 000000000 | 0000 |
2" | No. 3 | 25/64" | 0.21" | 0.462" | 0.224" | No. 3 | 14 | Steel, Sheet Metal | 10 | 000000000 | 0000 |
2 1/2" | No. 3 | 25/64" | 0.21" | 0.462" | 0.224" | No. 3 | 14 | Steel, Sheet Metal | 10 | 000000000 | 0000 |
Corrosion-Resistant-Coated Steel | |||||||||||
No. 10 | |||||||||||
3/4" | No. 2 | 5/16" | 0.175" | 0.362" | 0.176" | No. 2 | 16 | Steel, Sheet Metal | 100 | 000000000 | 0000 |
1" | No. 2 | 5/16" | 0.175" | 0.362" | 0.176" | No. 2 | 16 | Steel, Sheet Metal | 50 | 000000000 | 0000 |
1 1/4" | No. 2 | 5/16" | 0.175" | 0.362" | 0.176" | No. 2 | 16 | Steel, Sheet Metal | 50 | 000000000 | 0000 |
18-8 Stainless Steel | |||||||||||
No. 6 | |||||||||||
1/2" | No. 2 | 11/64" | 0.09" | 0.262" | 0.128" | No. 2 | 20 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
5/8" | No. 2 | 11/64" | 0.09" | 0.262" | 0.128" | No. 2 | 20 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
3/4" | No. 2 | 11/64" | 0.09" | 0.262" | 0.128" | No. 2 | 20 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
1" | No. 2 | 11/64" | 0.09" | 0.262" | 0.128" | No. 2 | 20 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
1 1/4" | No. 2 | 11/64" | 0.09" | 0.262" | 0.128" | No. 2 | 20 | Steel, Sheet Metal | 10 | 000000000 | 0000 |
No. 8 | |||||||||||
1/2" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
3/4" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 10 | 000000000 | 0000 |
1" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 10 | 000000000 | 0000 |
1 1/4" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 10 | 000000000 | 0000 |
1 1/2" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 10 | 000000000 | 0000 |
2" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 10 | 000000000 | 0000 |
No. 10 | |||||||||||
3/4" | No. 2 | 5/16" | 0.175" | 0.362" | 0.176" | No. 2 | 16 | Steel, Sheet Metal | 10 | 000000000 | 0000 |
1" | No. 2 | 5/16" | 0.175" | 0.362" | 0.176" | No. 2 | 16 | Steel, Sheet Metal | 10 | 000000000 | 0000 |
1 1/4" | No. 2 | 5/16" | 0.175" | 0.362" | 0.176" | No. 2 | 16 | Steel, Sheet Metal | 10 | 000000000 | 0000 |
1/4" | |||||||||||
1" | No. 3 | 25/64" | 0.22" | 0.462" | 0.224" | No. 3 | 14 | Steel, Sheet Metal | 5 | 000000000 | 0000 |
410 Stainless Steel | |||||||||||
No. 8 | |||||||||||
3/4" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
1" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 25 | 000000000 | 0000 |
1 1/4" | No. 2 | 7/32" | 0.1" | 0.312" | 0.152" | No. 2 | 18 | Steel, Sheet Metal | 10 | 000000000 | 0000 |
No. 10 | |||||||||||
1 1/4" | No. 2 | 5/16" | 0.175" | 0.362" | 0.176" | No. 2 | 18 | Steel, Sheet Metal | 10 | 000000000 | 0000 |