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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 Hex Head Thread-Cutting Screws
 |
Cut threads into drilled holes in metal using a nutdriver or socket. Because these screws remove material, 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 | Pkg. Qty. | Pkg. | |||
Zinc-Plated Steel | ||||||||||||
No. 4 Screw Size | ||||||||||||
| 1/4" | 0.188" | 0.079" | 0.243" | F | 40 | 41 Ga. | Round | 100 | 90096A301 | 000000 | ||
No. 6 Screw Size | ||||||||||||
| 1/4" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | 50 | 90096A302 | 0000 | ||
| 3/8" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | 100 | 90096A303 | 00000 | ||
| 1/2" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | 100 | 90096A304 | 00000 | ||
| 3/4" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | 100 | 90096A305 | 00000 | ||
| 1" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | 50 | 90096A306 | 00000 | ||
No. 8 Screw Size | ||||||||||||
| 1/4" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 100 | 90096A307 | 00000 | ||
| 5/16" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 50 | 90096A308 | 00000 | ||
| 3/8" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 100 | 90096A309 | 00000 | ||
| 1/2" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 100 | 90096A310 | 00000 | ||
| 5/8" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 100 | 90096A311 | 00000 | ||
| 3/4" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 50 | 90096A312 | 0000 | ||
| 1 1/2" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 25 | 90096A313 | 0000 | ||
No. 10 Screw Size | ||||||||||||
| 1/4" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | 25 | 90096A322 | 00000 | ||
| 5/16" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | 25 | 90096A323 | 00000 | ||
| 3/8" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | 100 | 90096A314 | 00000 | ||
| 3/8" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | 100 | 90096A324 | 00000 | ||
| 1/2" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | 100 | 90096A315 | 00000 | ||
| 1/2" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | 50 | 90096A325 | 00000 | ||
| 5/8" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | 100 | 90096A316 | 00000 | ||
| 3/4" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | 50 | 90096A317 | 00000 | ||
| 3/4" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | 50 | 90096A326 | 00000 | ||
| 1" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | 50 | 90096A318 | 00000 | ||
| 1 1/4" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | 10 | 90096A319 | 0000 | ||
| 1 1/2" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | 10 | 90096A320 | 0000 | ||
No. 12 Screw Size | ||||||||||||
| 1/2" | 0.313" | 0.194" | 0.432" | F | 24 | 11 Ga. | Round | 50 | 90096A327 | 00000 | ||
| 5/8" | 0.313" | 0.194" | 0.432" | F | 24 | 11 Ga. | Round | 25 | 90096A328 | 00000 | ||
| 3/4" | 0.313" | 0.194" | 0.432" | F | 24 | 11 Ga. | Round | 25 | 90096A329 | 00000 | ||
| 1" | 0.313" | 0.194" | 0.432" | F | 24 | 11 Ga. | Round | 10 | 90096A330 | 0000 | ||
1/4" Screw Size | ||||||||||||
| 3/8" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 50 | 90096A331 | 00000 | ||
| 1/2" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 50 | 90096A332 | 00000 | ||
| 5/8" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 25 | 90096A333 | 00000 | ||
| 3/4" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 25 | 90096A334 | 00000 | ||
| 7/8" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 10 | 90096A335 | 0000 | ||
| 1" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 25 | 90096A336 | 00000 | ||
| 1 1/4" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 25 | 90096A337 | 00000 | ||
| 1 1/2" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 25 | 90096A338 | 00000 | ||
| 1 3/4" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 10 | 90096A339 | 00000 | ||
| 2" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 10 | 90096A340 | 00000 | ||
| 2 1/2" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 5 | 90096A341 | 0000 | ||
| 3" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 5 | 90096A342 | 0000 | ||
| 4" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 1 | 90096A343 | 0000 | ||
5/16" Screw Size | ||||||||||||
| 1/2" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | 25 | 90096A578 | 00000 | ||
| 5/8" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | 25 | 90096A580 | 00000 | ||
| 3/4" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | 25 | 90096A581 | 00000 | ||
| 1" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | 25 | 90096A583 | 00000 | ||
| 1 1/4" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | 25 | 90096A585 | 00000 | ||
| 1 1/2" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | 10 | 90096A587 | 0000 | ||
| 1 3/4" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | 10 | 90096A345 | 00000 | ||
| 2" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | 5 | 90096A346 | 00000 | ||
| 2 1/2" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | 5 | 90096A347 | 00000 | ||
| 3" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | 5 | 90096A348 | 00000 | ||
3/8" Screw Size | ||||||||||||
| 1/2" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 10 | 90096A350 | 00000 | ||
| 5/8" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 10 | 90096A620 | 00000 | ||
| 3/4" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 10 | 90096A622 | 0000 | ||
| 1" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 10 | 90096A624 | 00000 | ||
| 1 1/4" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 10 | 90096A626 | 00000 | ||
| 1 1/2" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 10 | 90096A628 | 00000 | ||
| 2" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 10 | 90096A630 | 00000 | ||
| 2 1/2" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 1 | 90096A353 | 0000 | ||
| 3" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 1 | 90096A354 | 0000 | ||
| 3 1/2" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 1 | 90096A355 | 0000 | ||
| 4" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 1 | 90096A356 | 0000 | ||
| 5" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 1 | 90096A357 | 0000 | ||
1/2" Screw Size | ||||||||||||
| 3/4" | 0.75" | 0.485" | 1.04" | F | 13 | 29/64" | Round | 1 | 90096A358 | 0000 | ||
| 1" | 0.75" | 0.485" | 1.04" | F | 13 | 29/64" | Round | 1 | 90096A359 | 0000 | ||
| 1 1/4" | 0.75" | 0.485" | 1.04" | F | 13 | 29/64" | Round | 1 | 90096A360 | 0000 | ||
| 1 1/2" | 0.75" | 0.485" | 1.04" | F | 13 | 29/64" | Round | 1 | 90096A361 | 00000 | ||
| 2" | 0.75" | 0.485" | 1.04" | F | 13 | 29/64" | Round | 1 | 90096A363 | 0000 | ||
| 2 1/2" | 0.75" | 0.485" | 1.04" | F | 13 | 29/64" | Round | 1 | 90096A364 | 00000 | ||
| 3" | 0.75" | 0.485" | 1.04" | F | 13 | 29/64" | Round | 1 | 90096A365 | 00000 | ||
| 4" | 0.75" | 0.485" | 1.04" | F | 13 | 29/64" | Round | 1 | 90096A366 | 00000 | ||
Stainless Steel Flanged Hex Head Thread-Cutting Screws for Metal
 |
Tighten these corrosion-resistant screws with a nutdriver or socket to cut threads into drilled holes in metal. Because they remove material, 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.
410 Stainless Steel—Tougher and more wear resistant than other stainless steel screws but less corrosion resistant.
Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Wd. | Ht. | Flange Dia. | Tapping Screw Type | Approx. Threads per In. | Drill Bit Size | Shank Cross Section | Pkg. Qty. | Pkg. | |||
410 Stainless Steel | ||||||||||||
No. 8 Screw Size | ||||||||||||
| 1/4" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 100 | 96024A510 | 00000 | ||
| 3/8" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 100 | 96024A110 | 0000 | ||
| 1/2" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 100 | 96024A120 | 00000 | ||
No. 10 Screw Size | ||||||||||||
| 3/8" | 0.313" | 0.151" | 0.414" | F | 24 | 17 Ga. | Round | 100 | 96024A520 | 00000 | ||
| 3/8" | 0.313" | 0.151" | 0.414" | F | 32 | 17 Ga. | Round | 100 | 96024A570 | 00000 | ||
| 1/2" | 0.313" | 0.151" | 0.414" | F | 24 | 17 Ga. | Round | 100 | 96024A220 | 00000 | ||
| 1/2" | 0.313" | 0.151" | 0.414" | F | 32 | 17 Ga. | Round | 100 | 96024A310 | 00000 | ||
| 5/8" | 0.313" | 0.151" | 0.414" | F | 24 | 17 Ga. | Round | 100 | 96024A530 | 00000 | ||
| 5/8" | 0.313" | 0.151" | 0.414" | F | 32 | 17 Ga. | Round | 100 | 96024A580 | 00000 | ||
| 3/4" | 0.313" | 0.151" | 0.414" | F | 24 | 17 Ga. | Round | 100 | 96024A230 | 00000 | ||
| 3/4" | 0.313" | 0.151" | 0.414" | F | 32 | 17 Ga. | Round | 100 | 96024A320 | 00000 | ||
| 1" | 0.313" | 0.151" | 0.414" | F | 24 | 17 Ga. | Round | 100 | 96024A540 | 00000 | ||
| 1" | 0.313" | 0.151" | 0.414" | F | 32 | 17 Ga. | Round | 100 | 96024A590 | 00000 | ||
| 1 1/4" | 0.313" | 0.151" | 0.414" | F | 24 | 17 Ga. | Round | 50 | 96024A550 | 00000 | ||
| 1 1/4" | 0.313" | 0.151" | 0.414" | F | 32 | 17 Ga. | Round | 50 | 96024A610 | 00000 | ||
| 1 1/2" | 0.313" | 0.151" | 0.414" | F | 24 | 17 Ga. | Round | 50 | 96024A560 | 00000 | ||
| 1 1/2" | 0.313" | 0.151" | 0.414" | F | 32 | 17 Ga. | Round | 50 | 96024A620 | 00000 | ||
No. 12 Screw Size | ||||||||||||
| 1/2" | 0.313" | 0.155" | 0.432" | F | 24 | 8 Ga. | Round | 50 | 96024A630 | 0000 | ||
| 3/4" | 0.313" | 0.155" | 0.432" | F | 24 | 8 Ga. | Round | 50 | 96024A640 | 00000 | ||
| 1" | 0.313" | 0.155" | 0.432" | F | 24 | 8 Ga. | Round | 50 | 96024A650 | 00000 | ||
| 1 1/2" | 0.313" | 0.155" | 0.432" | F | 24 | 8 Ga. | Round | 25 | 96024A670 | 0000 | ||
1/4" Screw Size | ||||||||||||
| 3/8" | 0.375" | 0.19" | 0.52" | F | 20 | 1 Ga. | Round | 50 | 96024A680 | 00000 | ||
| 1/2" | 0.375" | 0.24" | 0.52" | F | 20 | 1 Ga. | Round | 50 | 96024A410 | 00000 | ||
| 5/8" | 0.375" | 0.19" | 0.52" | F | 20 | 1 Ga. | Round | 50 | 96024A690 | 00000 | ||
| 3/4" | 0.375" | 0.24" | 0.52" | F | 20 | 1 Ga. | Round | 50 | 96024A420 | 00000 | ||
| 1" | 0.375" | 0.24" | 0.52" | F | 20 | 1 Ga. | Round | 50 | 96024A430 | 00000 | ||
| 1 1/4" | 0.375" | 0.24" | 0.52" | F | 20 | 1 Ga. | Round | 50 | 96024A440 | 00000 | ||
| 1 1/2" | 0.375" | 0.24" | 0.52" | F | 20 | 1 Ga. | Round | 25 | 96024A450 | 00000 | ||
| 2" | 0.375" | 0.19" | 0.52" | F | 20 | 1 Ga. | Round | 25 | 96024A710 | 00000 | ||
5/16" Screw Size | ||||||||||||
| 3/4" | 0.5" | 0.23" | 0.676" | F | 18 | L | Round | 25 | 96024A760 | 00000 | ||
| 1" | 0.5" | 0.23" | 0.676" | F | 18 | L | Round | 25 | 96024A720 | 00000 | ||
| 1 1/4" | 0.5" | 0.23" | 0.676" | F | 18 | L | Round | 10 | 96024A730 | 0000 | ||
| 1 1/2" | 0.5" | 0.23" | 0.676" | F | 18 | L | Round | 10 | 96024A740 | 00000 | ||
| 2" | 0.5" | 0.23" | 0.676" | F | 18 | L | Round | 10 | 96024A750 | 00000 | ||
Steel Flanged Slotted Hex Head Thread-Cutting Screws
 |
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 | Pkg. Qty. | Pkg. | |||
Zinc-Plated Steel | ||||||||||||
No. 4 Screw Size | ||||||||||||
| 1/4" | 0.188" | 0.079" | 0.243" | F | 40 | 41 Ga. | Round | 100 | 90096A106 | 00000 | ||
| 3/8" | 0.188" | 0.079" | 0.243" | F | 40 | 41 Ga. | Round | 100 | 90096A108 | 00000 | ||
No. 6 Screw Size | ||||||||||||
| 1/4" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | 100 | 90096A144 | 00000 | ||
| 5/16" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | 100 | 90096A367 | 00000 | ||
| 3/8" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | 100 | 90096A146 | 00000 | ||
| 1/2" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | 100 | 90096A148 | 00000 | ||
| 3/4" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | 100 | 90096A368 | 00000 | ||
| 1" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | 100 | 90096A369 | 00000 | ||
| 2" | 0.25" | 0.118" | 0.328" | F | 32 | 31 Ga. | Round | 25 | 90096A371 | 0000 | ||
No. 8 Screw Size | ||||||||||||
| 1/4" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 100 | 90096A191 | 00000 | ||
| 5/16" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 100 | 90096A372 | 00000 | ||
| 3/8" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 100 | 90096A192 | 00000 | ||
| 1/2" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 100 | 90096A194 | 00000 | ||
| 5/8" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 100 | 90096A373 | 00000 | ||
| 3/4" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 100 | 90096A197 | 00000 | ||
| 1" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 50 | 90096A375 | 00000 | ||
| 1 1/2" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 25 | 90096A377 | 0000 | ||
| 2" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 25 | 90096A378 | 00000 | ||
| 2 1/2" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 25 | 90096A379 | 00000 | ||
No. 10 Screw Size | ||||||||||||
| 1/4" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | 25 | 90096A380 | 0000 | ||
| 1/4" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | 100 | 90096A385 | 00000 | ||
| 3/8" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | 100 | 90096A240 | 00000 | ||
| 3/8" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | 100 | 90096A827 | 00000 | ||
| 1/2" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | 100 | 90096A242 | 00000 | ||
| 1/2" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | 100 | 90096A829 | 00000 | ||
| 5/8" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | 100 | 90096A243 | 00000 | ||
| 5/8" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | 100 | 90096A830 | 00000 | ||
| 3/4" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | 100 | 90096A245 | 00000 | ||
| 3/4" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | 100 | 90096A831 | 00000 | ||
| 1" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | 100 | 90096A247 | 00000 | ||
| 1" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | 100 | 90096A832 | 00000 | ||
| 1 1/4" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | 25 | 90096A381 | 0000 | ||
| 1 1/4" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | 25 | 90096A386 | 00000 | ||
| 1 1/2" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | 25 | 90096A382 | 00000 | ||
| 1 1/2" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | 25 | 90096A387 | 00000 | ||
| 1 3/4" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | 10 | 90096A388 | 0000 | ||
| 2" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | 10 | 90096A383 | 0000 | ||
| 2" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | 10 | 90096A389 | 0000 | ||
| 2 1/2" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | 10 | 90096A390 | 0000 | ||
No. 12 Screw Size | ||||||||||||
| 3/8" | 0.313" | 0.194" | 0.432" | F | 24 | 11 Ga. | Round | 25 | 90096A391 | 00000 | ||
| 1/2" | 0.313" | 0.194" | 0.432" | F | 24 | 11 Ga. | Round | 50 | 90096A392 | 00000 | ||
| 5/8" | 0.313" | 0.194" | 0.432" | F | 24 | 11 Ga. | Round | 25 | 90096A393 | 00000 | ||
| 3/4" | 0.313" | 0.194" | 0.432" | F | 24 | 11 Ga. | Round | 25 | 90096A394 | 00000 | ||
| 1" | 0.313" | 0.194" | 0.432" | F | 24 | 11 Ga. | Round | 25 | 90096A395 | 00000 | ||
| 1 1/4" | 0.313" | 0.194" | 0.432" | F | 24 | 11 Ga. | Round | 10 | 90096A396 | 0000 | ||
1/4" Screw Size | ||||||||||||
| 3/8" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 50 | 90096A535 | 00000 | ||
| 1/2" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 50 | 90096A537 | 00000 | ||
| 5/8" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 50 | 90096A539 | 00000 | ||
| 3/4" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 50 | 90096A540 | 00000 | ||
| 1" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 25 | 90096A542 | 00000 | ||
| 1 1/4" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 25 | 90096A544 | 00000 | ||
| 1 1/2" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 25 | 90096A546 | 00000 | ||
| 1 3/4" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 10 | 90096A400 | 00000 | ||
| 2" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 25 | 90096A550 | 00000 | ||
| 2 1/2" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 5 | 90096A402 | 0000 | ||
5/16" Screw Size | ||||||||||||
| 1/2" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | 10 | 90096A404 | 00000 | ||
| 3/4" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | 10 | 90096A405 | 00000 | ||
| 1" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | 10 | 90096A406 | 00000 | ||
| 1 1/2" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | 5 | 90096A408 | 00000 | ||
3/8" Screw Size | ||||||||||||
| 5/8" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 5 | 90096A415 | 0000 | ||
| 1" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 5 | 90096A417 | 0000 | ||
| 1 1/4" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 5 | 90096A418 | 00000 | ||
| 2" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 1 | 90096A421 | 0000 | ||
Steel Serrated Flanged Hex Head Thread-Cutting Screws
 |  |
Serrations on the flange grip material for a tighter, more vibration-resistant hold than other tapping screws. Turn with a nutdriver or socket to cut threads into drilled holes in metal. Because they remove material, 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 material.
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 | Pkg. Qty. | Pkg. | |||
Zinc-Plated Steel | ||||||||||||
No. 8 Screw Size | ||||||||||||
| 3/8" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 50 | 90096A427 | 000000 | ||
| 1/2" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 50 | 90096A428 | 00000 | ||
| 5/8" | 0.25" | 0.141" | 0.348" | F | 32 | 26 Ga. | Round | 50 | 90096A429 | 00000 | ||
No. 10 Screw Size | ||||||||||||
| 3/8" | 0.313" | 0.151" | 0.414" | F | 24 | 19 Ga. | Round | 50 | 90096A430 | 00000 | ||
| 1/2" | 0.313" | 0.151" | 0.414" | F | 32 | 11/64" | Round | 25 | 90096A431 | 00000 | ||
No. 12 Screw Size | ||||||||||||
| 3/4" | 0.313" | 0.194" | 0.432" | F | 24 | 11 Ga. | Round | 25 | 90096A432 | 00000 | ||
| 1" | 0.313" | 0.194" | 0.432" | F | 24 | 11 Ga. | Round | 25 | 90096A433 | 00000 | ||
1/4" Screw Size | ||||||||||||
| 1/2" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 25 | 90096A435 | 00000 | ||
| 5/8" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 10 | 90096A436 | 0000 | ||
| 3/4" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 10 | 90096A437 | 0000 | ||
| 1" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 10 | 90096A438 | 0000 | ||
| 1 1/2" | 0.375" | 0.24" | 0.52" | F | 20 | 2 Ga. | Round | 10 | 90096A439 | 0000 | ||
5/16" Screw Size | ||||||||||||
| 1/2" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | 5 | 90096A440 | 00000 | ||
| 1" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | 5 | 90096A441 | 00000 | ||
| 1 1/4" | 0.5" | 0.285" | 0.676" | F | 18 | K | Round | 5 | 90096A442 | 0000 | ||
3/8" Screw Size | ||||||||||||
| 1" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 5 | 90096A444 | 00000 | ||
| 1 1/4" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 5 | 90096A445 | 00000 | ||
| 1 1/2" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 5 | 90096A446 | 00000 | ||
| 2" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 1 | 90096A447 | 0000 | ||
| 2 1/2" | 0.563" | 0.358" | 0.78" | F | 16 | R | Round | 1 | 90096A448 | 0000 | ||
1/2" Screw Size | ||||||||||||
| 1" | 0.75" | 0.485" | 1.04" | F | 13 | 29/64" | Round | 1 | 90096A450 | 0000 | ||
| 1 1/2" | 0.75" | 0.485" | 1.04" | F | 13 | 29/64" | Round | 1 | 90096A452 | 00000 | ||
Electrical Grounding Screws
 |
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 | ||
Sealing Screws for Wood and Composite Wood
 |
Head | Washer | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Drill Bit Size | Flat Head Profile | Approx. Threads per In. | Threading | OD | Thk. | Tapping Method | Tapping Screw Type | Pkg. Qty. | Pkg. | |||
18-8 Stainless Steel with Stainless Steel and Rubber Washer | |||||||||||||||
No. 7 | |||||||||||||||
| 1" | 0.23" | 0.125" | 1/16" | Standard | 16 | Partially Threaded | 0.63" | 0.2" | Thread Cutting | 17 | 25 | 91540A100 | 000000 | ||
| 1 5/8" | 0.23" | 0.125" | 1/16" | Standard | 16 | Partially Threaded | 0.63" | 0.2" | Thread Cutting | 17 | 25 | 91540A200 | 00000 | ||
| 2 1/4" | 0.23" | 0.125" | 1/16" | Standard | 16 | Partially Threaded | 0.63" | 0.2" | Thread Cutting | 17 | 10 | 91540A300 | 00000 | ||
| 3" | 0.23" | 0.125" | 1/16" | Standard | 16 | Partially Threaded | 0.63" | 0.2" | Thread Cutting | 17 | 10 | 91540A400 | 00000 | ||
Steel Phillips Flanged Hex Head Thread-Cutting Screws
 |
The combination drive lets you install screws with a Phillips driver or switch to a nutdriver or socket for more torque. Because these screws remove material, they take less effort to install and put less stress on your workpiece than thread-forming screws. The flanged head 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.
