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About Tapping Screws
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Compare drilling, pointed, thread-forming, and thread-cutting tips to find the best choice for your material.
Brass Combination Slotted/Phillips Rounded Head Screws for Sheet Metal
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Turn these shiny, corrosion-resistant screws with drivers of either style. A Phillips driver makes the most contact, and a slotted driver will work in a pinch. Made of brass, screws are conductive and nonmagnetic for use in electrical applications. They have a pointed tip to start a hole in sheet metal up to 0.025" thick, but for thicker material you’ll need to drill first. The rounded head creates a finished look.
Length is measured from under the head.
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Tapping Screw Type | Drive Size | Approx. Threads per In. | Drill Bit Size | Pkg. Qty. | Pkg. | |||
No. 10 Screw Size | |||||||||||
| 3/4" | 0.373" | 0.133" | A | No. 2 | 12 | 21 Ga. | 25 | 90077A910 | 000000 | ||
Aluminum Phillips Rounded Head Screws for Sheet Metal
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Our lightest sheet metal screws reduce weight in aluminum assemblies. They have a pointed tip to start a hole in sheets up to 0.025" thick, but for thicker material you’ll need to drill first. The Phillips drive handles enough torque to keep drivers from slipping and the rounded head creates a finished look.
Length is measured from under the head.
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Tapping Screw Type | Drive Size | Approx. Threads per In. | Drill Bit Size | Pkg. Qty. | Pkg. | |||
Lightweight 2024 Aluminum | |||||||||||
No. 6 Screw Size | |||||||||||
| 3/8" | 0.27" | 0.097" | AB | No. 2 | 18 | 32 Ga. | 50 | 93080A310 | 000000 | ||
| 1/2" | 0.27" | 0.097" | AB | No. 2 | 18 | 32 Ga. | 25 | 93080A330 | 00000 | ||
| 1" | 0.27" | 0.097" | AB | No. 2 | 18 | 32 Ga. | 25 | 93080A390 | 00000 | ||
No. 8 Screw Size | |||||||||||
| 3/8" | 0.322" | 0.115" | AB | No. 2 | 15 | 29 Ga. | 10 | 93080A420 | 0000 | ||
| 1" | 0.322" | 0.115" | AB | No. 2 | 15 | 29 Ga. | 25 | 93080A480 | 00000 | ||
| 1 1/2" | 0.322" | 0.115" | AB | No. 2 | 15 | 29 Ga. | 25 | 93080A520 | 00000 | ||
Aluminum Serrated-Flange Hex Head Drilling Screws for Aluminum
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Fasten lightweight aluminum components without worrying about galvanic corrosion. They’re also corrosion resistant and nonmagnetic. A serrated flange spreads the load to prevent crushing material and grips surfaces to resist mild vibration. The hex head gives you a firm, high-torque grip with a nutdriver or socket.
Length is measured from the flange. Head height includes the flange.
Drill Tip | Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Point Size | Lg. | Wd. | Ht. | Flange Dia. | Max. Drilling Thk. | Tapping Screw Type | Approx. Threads per In. | Pkg. Qty. | Pkg. | |||
Lightweight 7075 Aluminum | |||||||||||||
No. 8 Screw Size | |||||||||||||
| 1/2" | No. 2 | 3/16" | 0.25" | 0.141" | 0.348" | 0.098" | BSD | 18 | 10 | 98248A220 | 000000 | ||
| 3/4" | No. 2 | 3/16" | 0.25" | 0.141" | 0.348" | 0.098" | BSD | 18 | 10 | 98248A250 | 00000 | ||
| 1" | No. 2 | 3/16" | 0.25" | 0.141" | 0.348" | 0.098" | BSD | 18 | 10 | 98248A270 | 00000 | ||
No. 10 Screw Size | |||||||||||||
| 1/2" | No. 2 | 13/64" | 0.313" | 0.151" | 0.414" | 0.106" | BSD | 16 | 10 | 98248A430 | 00000 | ||
| 3/4" | No. 2 | 13/64" | 0.313" | 0.151" | 0.414" | 0.106" | BSD | 16 | 10 | 98248A470 | 00000 | ||
| 1" | No. 2 | 13/64" | 0.313" | 0.151" | 0.414" | 0.106" | BSD | 16 | 10 | 98248A490 | 00000 | ||
