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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.
Steel Flanged Slotted Hex Head Thread-Cutting Screws
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Cut threads into drilled holes in metal using a nutdriver or socket, then make adjustments with a slotted screwdriver. These screws remove material, so they take less effort to install and put less stress on your workpiece than thread-forming screws. The flanged hex head gives you a high-torque grip and spreads the load to prevent crushing thin metal.
Length is measured from under the flange. Head height includes the flange.
Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
Head | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Ht. | Flange Dia. | Tapping Screw Type | Approx. Threads per In. | Drill Bit Size | Shank Cross Section | Specs. Met | Pkg. Qty. | Pkg. | |||
Zinc-Plated Steel | |||||||||||||
No. 4 Screw Size | |||||||||||||
| 1/4" | 0.188" | 0.079" | 0.243" | F | 40 | 41 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A106 | 00000 | ||
| 3/8" | 0.188" | 0.079" | 0.243" | F | 40 | 41 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A108 | 00000 | ||
No. 6 Screw Size | |||||||||||||
| 1/4" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A144 | 00000 | ||
| 5/16" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A367 | 00000 | ||
| 3/8" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A146 | 00000 | ||
| 1/2" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A148 | 00000 | ||
| 3/4" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A368 | 00000 | ||
| 1" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A369 | 00000 | ||
| 2" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90096A371 | 0000 | ||
No. 8 Screw Size | |||||||||||||
| 1/4" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A191 | 00000 | ||
| 5/16" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A372 | 00000 | ||
| 3/8" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A192 | 00000 | ||
| 1/2" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A194 | 00000 | ||
| 5/8" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A373 | 00000 | ||
| 3/4" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A197 | 00000 | ||
| 1" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90096A375 | 00000 | ||
| 1 1/2" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90096A377 | 0000 | ||
| 2" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90096A378 | 00000 | ||
| 2 1/2" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90096A379 | 00000 | ||
No. 10 Screw Size | |||||||||||||
| 1/4" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90096A380 | 0000 | ||
| 1/4" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | ASME B18.6.3, SAE J933 | 100 | 90096A385 | 00000 | ||
| 3/8" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A240 | 00000 | ||
| 3/8" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | ASME B18.6.3, SAE J933 | 100 | 90096A827 | 00000 | ||
| 1/2" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A242 | 00000 | ||
| 1/2" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | ASME B18.6.3, SAE J933 | 100 | 90096A829 | 00000 | ||
| 5/8" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A243 | 00000 | ||
| 5/8" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | ASME B18.6.3, SAE J933 | 100 | 90096A830 | 00000 | ||
| 3/4" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A245 | 00000 | ||
| 3/4" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | ASME B18.6.3, SAE J933 | 100 | 90096A831 | 00000 | ||
| 1" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | ASME B18.6.3, SAE J933 | 100 | 90096A247 | 00000 | ||
| 1" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | ASME B18.6.3, SAE J933 | 100 | 90096A832 | 00000 | ||
| 1 1/4" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90096A381 | 0000 | ||
| 1 1/4" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | ASME B18.6.3, SAE J933 | 25 | 90096A386 | 00000 | ||
| 1 1/2" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90096A382 | 00000 | ||
| 1 1/2" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | ASME B18.6.3, SAE J933 | 25 | 90096A387 | 00000 | ||
| 1 3/4" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | ASME B18.6.3, SAE J933 | 10 | 90096A388 | 0000 | ||
| 2" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | ASME B18.6.3, SAE J933 | 10 | 90096A383 | 0000 | ||
| 2" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | ASME B18.6.3, SAE J933 | 10 | 90096A389 | 0000 | ||
| 2 1/2" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | ASME B18.6.3, SAE J933 | 10 | 90096A390 | 0000 | ||
No. 12 Screw Size | |||||||||||||
| 3/8" | 0.313" | 0.194" | 0.432" | F | 24 | 11 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90096A391 | 00000 | ||
| 1/2" | 0.313" | 0.194" | 0.432" | F | 24 | 11 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90096A392 | 00000 | ||
| 5/8" | 0.313" | 0.194" | 0.432" | F | 24 | 11 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90096A393 | 00000 | ||
| 3/4" | 0.313" | 0.194" | 0.432" | F | 24 | 11 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90096A394 | 00000 | ||
| 1" | 0.313" | 0.194" | 0.432" | F | 24 | 11 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90096A395 | 00000 | ||
| 1 1/4" | 0.313" | 0.194" | 0.432" | F | 24 | 11 Ga. | Round | ASME B18.6.3, SAE J933 | 10 | 90096A396 | 0000 | ||
1/4" Screw Size | |||||||||||||
| 3/8" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90096A535 | 00000 | ||
| 1/2" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90096A537 | 00000 | ||
| 5/8" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90096A539 | 00000 | ||
| 3/4" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | ASME B18.6.3, SAE J933 | 50 | 90096A540 | 00000 | ||
| 1" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90096A542 | 00000 | ||
| 1 1/4" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90096A544 | 00000 | ||
| 1 1/2" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90096A546 | 00000 | ||
| 1 3/4" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | ASME B18.6.3, SAE J933 | 10 | 90096A400 | 00000 | ||
| 2" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | ASME B18.6.3, SAE J933 | 25 | 90096A550 | 00000 | ||
| 2 1/2" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | ASME B18.6.3, SAE J933 | 5 | 90096A402 | 0000 | ||
5/16" Screw Size | |||||||||||||
| 1/2" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | ASME B18.6.3, SAE J933 | 10 | 90096A404 | 00000 | ||
| 3/4" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | ASME B18.6.3, SAE J933 | 10 | 90096A405 | 00000 | ||
| 1" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | ASME B18.6.3, SAE J933 | 10 | 90096A406 | 00000 | ||
| 1 1/2" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | ASME B18.6.3, SAE J933 | 5 | 90096A408 | 00000 | ||
3/8" Screw Size | |||||||||||||
| 5/8" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | ASME B18.6.3, SAE J933 | 5 | 90096A415 | 0000 | ||
| 1" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | ASME B18.6.3, SAE J933 | 5 | 90096A417 | 0000 | ||
| 1 1/4" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | ASME B18.6.3, SAE J933 | 5 | 90096A418 | 00000 | ||
| 2" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | ASME B18.6.3, SAE J933 | 1 | 90096A421 | 0000 | ||
Electrical Grounding Screws
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Green so you know they’re for grounding, these screws secure electrical connections. The wide flange creates a solid, flat contact surface for reliable conductivity. As you drive these screws, they cut their own threads in drilled holes.
Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Ht. | Flange Dia. | Tapping Screw Type | Approx. Threads per In. | Drill Bit Size | Shank Cross Section | Pkg. Qty. | Pkg. | |||
Green Dyed Zinc-Plated Steel | ||||||||||||
No. 6 Screw Size | ||||||||||||
| 1/4" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | 25 | 92597A600 | 00000 | ||
| 3/8" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | 25 | 92597A100 | 0000 | ||
No. 8 Screw Size | ||||||||||||
| 1/4" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 25 | 92597A700 | 0000 | ||
| 5/16" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 25 | 92597A800 | 0000 | ||
| 3/8" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 25 | 92597A201 | 0000 | ||
| 1/2" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 25 | 92597A300 | 0000 | ||
No. 10 Screw Size | ||||||||||||
| 1/4" | 0.313" | 0.151" | 0.414" | F | 32 | 17 Ga. | Round | 25 | 92597A120 | 0000 | ||
| 5/16" | 0.313" | 0.151" | 0.414" | F | 32 | 17 Ga. | Round | 25 | 92597A130 | 0000 | ||
| 3/8" | 0.313" | 0.151" | 0.414" | F | 24 | 16 Ga. | Round | 25 | 92597A900 | 0000 | ||
| 3/8" | 0.313" | 0.151" | 0.414" | F | 32 | 17 Ga. | Round | 25 | 92597A401 | 0000 | ||
| 1/2" | 0.313" | 0.151" | 0.414" | F | 24 | 16 Ga. | Round | 25 | 92597A110 | 0000 | ||
| 1/2" | 0.313" | 0.151" | 0.414" | F | 32 | 17 Ga. | Round | 25 | 92597A500 | 0000 | ||
| 3/4" | 0.313" | 0.151" | 0.414" | F | 32 | 17 Ga. | Round | 25 | 92597A140 | 00000 | ||
