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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.
Stainless Steel Square-Drive Rounded Head Drilling Screws
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Drill and fasten in one step with screws that prevent drivers from slipping out. Also known as Robertson drive, the square recess withstands more torque than a Phillips drive. These screws resist corrosion and have a rounded head for a finished look.
Length is measured from under the head.
410 Stainless Steel—Tougher and more wear resistant than other stainless steel screws but less corrosion resistant.
18-8 Stainless Steel—The choice for wet and outdoor environments. However, these screws won't hold up to the harsh chemicals that 316 stainless steel can.
Drill Tip | Head | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Point Size | Lg. | Dia. | Ht. | Max. Drilling Thk. | Tapping Screw Type Designation | Drive Size | Approx. Threads per In. | Pkg. Qty. | Pkg. | |||
410 Stainless Steel | |||||||||||||
No. 2 Screw Size | |||||||||||||
| 3/8" | No. 2 | 3/64" | 0.164" | 0.061" | 0.047" | BSD | No. 00 | 32 | 10 | 90203A321 | 000000 | ||
| 1/2" | No. 2 | 3/64" | 0.164" | 0.061" | 0.047" | BSD | No. 00 | 32 | 10 | 90203A322 | 00000 | ||
| 3/4" | No. 2 | 5/64" | 0.215" | 0.078" | 0.087" | BSD | No. 0 | 32 | 10 | 90203A323 | 00000 | ||
No. 4 Screw Size | |||||||||||||
| 3/8" | No. 2 | 5/64" | 0.215" | 0.078" | 0.087" | BSD | No. 0 | 24 | 10 | 90203A324 | 00000 | ||
| 1/2" | No. 2 | 5/64" | 0.215" | 0.078" | 0.087" | BSD | No. 0 | 24 | 10 | 90203A325 | 00000 | ||
| 5/8" | No. 2 | 5/64" | 0.215" | 0.078" | 0.087" | BSD | No. 0 | 24 | 10 | 90203A326 | 00000 | ||
| 3/4" | No. 2 | 5/64" | 0.215" | 0.078" | 0.087" | BSD | No. 0 | 24 | 10 | 90203A327 | 00000 | ||
No. 6 Screw Size | |||||||||||||
| 3/8" | No. 1 | 7/64" | 0.27" | 0.097" | 0.035" | BSD | No. 1 | 20 | 100 | 90203A205 | 0000 | ||
| 1/2" | No. 2 | 9/64" | 0.27" | 0.097" | 0.09" | BSD | No. 1 | 20 | 100 | 90203A250 | 0000 | ||
| 5/8" | No. 2 | 9/64" | 0.27" | 0.097" | 0.09" | BSD | No. 1 | 20 | 100 | 90203A510 | 0000 | ||
| 3/4" | No. 2 | 9/64" | 0.27" | 0.097" | 0.09" | BSD | No. 1 | 20 | 100 | 90203A253 | 0000 | ||
| 7/8" | No. 2 | 5/32" | 0.27" | 0.082" | 0.063" | BSD | No. 2 | 20 | 100 | 90203A328 | 0000 | ||
| 1" | No. 2 | 9/64" | 0.27" | 0.097" | 0.09" | BSD | No. 1 | 20 | 100 | 90203A511 | 0000 | ||
| 1 1/8" | No. 2 | 5/32" | 0.27" | 0.082" | 0.063" | BSD | No. 2 | 20 | 100 | 90203A329 | 0000 | ||
| 1 1/4" | No. 2 | 9/64" | 0.27" | 0.097" | 0.09" | BSD | No. 1 | 20 | 100 | 90203A512 | 00000 | ||
No. 8 Screw Size | |||||||||||||
| 3/8" | No. 2 | 1/8" | 0.322" | 0.115" | 0.035" | BSD | No. 2 | 18 | 100 | 90203A513 | 0000 | ||
| 7/16" | No. 2 | 7/32" | 0.322" | 0.096" | 0.063" | BSD | No. 3 | 18 | 100 | 90203A331 | 0000 | ||
| 1/2" | No. 2 | 3/16" | 0.322" | 0.115" | 0.098" | BSD | No. 2 | 18 | 100 | 90203A310 | 0000 | ||
| 9/16" | No. 2 | 7/32" | 0.322" | 0.096" | 0.063" | BSD | No. 3 | 18 | 100 | 90203A332 | 0000 | ||
| 5/8" | No. 2 | 3/16" | 0.322" | 0.115" | 0.098" | BSD | No. 2 | 18 | 100 | 90203A514 | 0000 | ||
| 11/16" | No. 2 | 7/32" | 0.322" | 0.096" | 0.063" | BSD | No. 3 | 18 | 100 | 90203A333 | 0000 | ||
| 3/4" | No. 2 | 3/16" | 0.322" | 0.115" | 0.098" | BSD | No. 2 | 18 | 50 | 90203A313 | 0000 | ||
| 7/8" | No. 2 | 7/32" | 0.322" | 0.096" | 0.063" | BSD | No. 3 | 18 | 50 | 90203A334 | 0000 | ||
| 1" | No. 2 | 3/16" | 0.322" | 0.115" | 0.098" | BSD | No. 2 | 18 | 50 | 90203A316 | 0000 | ||
| 1 1/8" | No. 2 | 7/32" | 0.322" | 0.096" | 0.063" | BSD | No. 3 | 18 | 50 | 90203A335 | 0000 | ||
| 1 1/4" | No. 2 | 3/16" | 0.322" | 0.115" | 0.098" | BSD | No. 2 | 18 | 50 | 90203A515 | 0000 | ||
| 1 1/2" | No. 2 | 3/16" | 0.322" | 0.115" | 0.098" | BSD | No. 2 | 18 | 50 | 90203A516 | 0000 | ||
| 1 3/4" | No. 2 | 7/32" | 0.322" | 0.096" | 0.063" | BSD | No. 3 | 18 | 50 | 90203A336 | 0000 | ||
| 2" | No. 2 | 3/16" | 0.322" | 0.115" | 0.098" | BSD | No. 2 | 18 | 25 | 90203A517 | 0000 | ||
No. 10 Screw Size | |||||||||||||
| 3/8" | No. 2 | 15/64" | 0.373" | 0.115" | 0.11" | BSD | No. 2 | 16 | 50 | 90203A344 | 0000 | ||
| 7/16" | No. 2 | 15/64" | 0.373" | 0.115" | 0.11" | BSD | No. 2 | 16 | 50 | 90203A345 | 0000 | ||
| 1/2" | No. 2 | 13/64" | 0.373" | 0.133" | 0.106" | BSD | No. 2 | 16 | 50 | 90203A412 | 0000 | ||
| 9/16" | No. 3 | 9/32" | 0.373" | 0.11" | 0.063" | BSD | No. 3 | 16 | 50 | 90203A337 | 0000 | ||
| 5/8" | No. 3 | 1/4" | 0.373" | 0.133" | 0.15" | BSD | No. 2 | 16 | 50 | 90203A518 | 0000 | ||
| 11/16" | No. 3 | 9/32" | 0.373" | 0.11" | 0.063" | BSD | No. 3 | 16 | 50 | 90203A338 | 0000 | ||
| 3/4" | No. 3 | 1/4" | 0.373" | 0.133" | 0.15" | BSD | No. 2 | 16 | 50 | 90203A415 | 0000 | ||
| 7/8" | No. 3 | 15/64" | 0.373" | 0.115" | 0.11" | BSD | No. 2 | 16 | 50 | 90203A346 | 0000 | ||
| 1" | No. 3 | 1/4" | 0.373" | 0.133" | 0.15" | BSD | No. 2 | 16 | 50 | 90203A418 | 0000 | ||
| 1 1/8" | No. 3 | 9/32" | 0.373" | 0.11" | 0.063" | BSD | No. 3 | 16 | 50 | 90203A339 | 00000 | ||
| 1 1/4" | No. 3 | 1/4" | 0.373" | 0.133" | 0.15" | BSD | No. 2 | 16 | 25 | 90203A519 | 0000 | ||
| 1 1/2" | No. 3 | 1/4" | 0.373" | 0.133" | 0.15" | BSD | No. 2 | 16 | 25 | 90203A520 | 0000 | ||
| 1 3/4" | No. 3 | 9/32" | 0.373" | 0.11" | 0.063" | BSD | No. 3 | 16 | 25 | 90203A341 | 0000 | ||
| 2" | No. 3 | 1/4" | 0.373" | 0.133" | 0.15" | BSD | No. 2 | 16 | 25 | 90203A521 | 0000 | ||
| 2 1/2" | No. 3 | 1/4" | 0.373" | 0.133" | 0.15" | BSD | No. 2 | 16 | 10 | 90203A522 | 0000 | ||
| 3" | No. 3 | 1/4" | 0.373" | 0.133" | 0.15" | BSD | No. 2 | 16 | 10 | 90203A523 | 0000 | ||
No. 12 Screw Size | |||||||||||||
| 3/8" | No. 2 | 3/32" | 0.425" | 0.151" | 0.14" | BSD | No. 3 | 14 | 50 | 90203A347 | 0000 | ||
| 1/2" | No. 2 | 11/32" | 0.425" | 0.151" | 0.14" | BSD | No. 3 | 14 | 50 | 90203A348 | 0000 | ||
| 5/8" | No. 3 | 11/32" | 0.425" | 0.125" | 0.063" | BSD | No. 3 | 14 | 50 | 90203A342 | 00000 | ||
| 3/4" | No. 3 | 9/32" | 0.425" | 0.151" | 0.187" | BSD | No. 3 | 14 | 25 | 90203A240 | 0000 | ||
| 7/8" | No. 3 | 11/32" | 0.425" | 0.125" | 0.063" | BSD | No. 3 | 14 | 25 | 90203A343 | 0000 | ||
| 1" | No. 3 | 9/32" | 0.425" | 0.151" | 0.187" | BSD | No. 3 | 14 | 25 | 90203A525 | 0000 | ||
| 1 1/4" | No. 3 | 9/32" | 0.425" | 0.151" | 0.187" | BSD | No. 3 | 14 | 25 | 90203A526 | 0000 | ||
| 1 1/2" | No. 3 | 9/32" | 0.425" | 0.151" | 0.187" | BSD | No. 3 | 14 | 10 | 90203A527 | 0000 | ||
| 2" | No. 3 | 9/32" | 0.425" | 0.151" | 0.187" | BSD | No. 3 | 14 | 10 | 90203A528 | 0000 | ||
No. 14 Screw Size | |||||||||||||
| 3/4" | No. 3 | 5/16" | 0.492" | 0.175" | 0.21" | BSD | No. 3 | 14 | 10 | 90203A529 | 0000 | ||
| 1" | No. 3 | 5/16" | 0.492" | 0.175" | 0.21" | BSD | No. 3 | 14 | 10 | 90203A530 | 0000 | ||
| 1 1/4" | No. 3 | 5/16" | 0.492" | 0.175" | 0.21" | BSD | No. 3 | 14 | 10 | 90203A531 | 0000 | ||
| 1 1/2" | No. 3 | 5/16" | 0.492" | 0.175" | 0.21" | BSD | No. 3 | 14 | 10 | 90203A532 | 0000 | ||
| 2" | No. 3 | 5/16" | 0.492" | 0.175" | 0.21" | BSD | No. 3 | 14 | 10 | 90203A533 | 0000 | ||
1/4" Screw Size | |||||||||||||
| 1/2" | No. 2 | 3/16" | 0.476" | 0.169" | 0.175" | BSD | No. 3 | 14 | 25 | 90203A349 | 0000 | ||
| 5/8" | No. 2 | 25/64" | 0.476" | 0.169" | 0.175" | BSD | No. 3 | 14 | 25 | 90203A351 | 0000 | ||
| 3/4" | No. 3 | 25/64" | 0.476" | 0.169" | 0.175" | BSD | No. 3 | 14 | 25 | 90203A352 | 0000 | ||
| 1" | No. 3 | 25/64" | 0.476" | 0.169" | 0.175" | BSD | No. 3 | 14 | 25 | 90203A353 | 0000 | ||
| 1 1/4" | No. 3 | 25/64" | 0.476" | 0.169" | 0.175" | BSD | No. 3 | 14 | 10 | 90203A354 | 0000 | ||
| 1 1/2" | No. 3 | 25/64" | 0.476" | 0.169" | 0.175" | BSD | No. 3 | 14 | 10 | 90203A355 | 0000 | ||
| 2" | No. 5 | 11/32" | 0.476" | 0.169" | 0.11" | CSD | No. 3 | 20 | 10 | 90203A356 | 0000 | ||
18-8 Stainless Steel | |||||||||||||
No. 6 Screw Size | |||||||||||||
| 3/8" | No. 2 | 9/64" | 0.27" | 0.097" | 0.09" | — | No. 1 | 20 | 25 | 90203A611 | 00000 | ||
| 1/2" | No. 2 | 9/64" | 0.27" | 0.097" | 0.09" | — | No. 1 | 20 | 25 | 90203A612 | 00000 | ||
No. 8 Screw Size | |||||||||||||
| 3/8" | No. 2 | 3/16" | 0.322" | 0.115" | 0.1" | — | No. 2 | 18 | 25 | 90203A613 | 00000 | ||
| 1/2" | No. 2 | 3/16" | 0.322" | 0.115" | 0.1" | — | No. 2 | 18 | 25 | 90203A614 | 00000 | ||
| 5/8" | No. 2 | 3/16" | 0.322" | 0.115" | 0.1" | — | No. 2 | 18 | 25 | 90203A615 | 00000 | ||
| 3/4" | No. 2 | 3/16" | 0.322" | 0.115" | 0.1" | — | No. 2 | 18 | 25 | 90203A616 | 00000 | ||
| 1" | No. 2 | 3/16" | 0.322" | 0.115" | 0.1" | — | No. 2 | 18 | 10 | 90203A617 | 0000 | ||
| 1 1/4" | No. 2 | 3/16" | 0.322" | 0.115" | 0.1" | — | No. 2 | 18 | 10 | 90203A618 | 0000 | ||
| 1 1/2" | No. 2 | 3/16" | 0.322" | 0.115" | 0.1" | — | No. 2 | 18 | 10 | 90203A619 | 0000 | ||
| 2" | No. 2 | 3/16" | 0.322" | 0.115" | 0.1" | — | No. 2 | 18 | 10 | 90203A621 | 00000 | ||
| 2 1/2" | No. 2 | 3/16" | 0.322" | 0.115" | 0.1" | — | No. 2 | 18 | 10 | 90203A622 | 00000 | ||
No. 10 Screw Size | |||||||||||||
| 1/2" | No. 2 | 13/64" | 0.373" | 0.133" | 0.11" | — | No. 2 | 16 | 10 | 90203A623 | 0000 | ||
| 5/8" | No. 3 | 1/4" | 0.373" | 0.133" | 0.175" | — | No. 2 | 16 | 10 | 90203A624 | 0000 | ||
| 3/4" | No. 3 | 1/4" | 0.373" | 0.133" | 0.175" | — | No. 2 | 16 | 10 | 90203A625 | 0000 | ||
| 1" | No. 3 | 1/4" | 0.373" | 0.137" | 0.15" | — | No. 2 | 16 | 25 | 90203A112 | 00000 | ||
| 1 1/2" | No. 3 | 1/4" | 0.373" | 0.137" | 0.15" | — | No. 2 | 16 | 25 | 90203A118 | 00000 | ||
| 1 3/4" | No. 3 | 1/4" | 0.373" | 0.133" | 0.175" | — | No. 2 | 16 | 5 | 90203A626 | 0000 | ||
| 2" | No. 3 | 1/4" | 0.373" | 0.137" | 0.15" | — | No. 2 | 16 | 25 | 90203A121 | 00000 | ||
| 2 1/2" | No. 3 | 1/4" | 0.373" | 0.133" | 0.175" | — | No. 2 | 16 | 5 | 90203A627 | 0000 | ||
| 3" | No. 3 | 1/4" | 0.373" | 0.133" | 0.175" | — | No. 2 | 16 | 5 | 90203A628 | 00000 | ||
No. 12 Screw Size | |||||||||||||
| 3/4" | No. 3 | 9/32" | 0.425" | 0.151" | 0.21" | — | No. 3 | 14 | 10 | 90203A629 | 00000 | ||
| 1" | No. 3 | 9/32" | 0.425" | 0.151" | 0.21" | — | No. 3 | 14 | 10 | 90203A631 | 00000 | ||
| 1 1/4" | No. 3 | 9/32" | 0.425" | 0.151" | 0.21" | — | No. 3 | 14 | 5 | 90203A632 | 00000 | ||
| 1 1/2" | No. 3 | 9/32" | 0.425" | 0.151" | 0.21" | — | No. 3 | 14 | 5 | 90203A633 | 00000 | ||
| 2" | No. 3 | 9/32" | 0.425" | 0.151" | 0.21" | — | No. 3 | 14 | 5 | 90203A634 | 00000 | ||
1/4" Screw Size | |||||||||||||
| 3/4" | No. 3 | 5/16" | 0.492" | 0.175" | 0.22" | — | No. 3 | 14 | 5 | 90203A635 | 00000 | ||
| 1" | No. 3 | 5/16" | 0.492" | 0.175" | 0.22" | — | No. 3 | 14 | 5 | 90203A636 | 00000 | ||
| 1 1/4" | No. 3 | 5/16" | 0.492" | 0.175" | 0.22" | — | No. 3 | 14 | 5 | 90203A637 | 0000 | ||
| 1 1/2" | No. 3 | 5/16" | 0.492" | 0.175" | 0.22" | — | No. 3 | 14 | 1 | 90203A638 | 0000 | ||
| 2" | No. 3 | 5/16" | 0.492" | 0.175" | 0.22" | — | No. 3 | 14 | 1 | 90203A639 | 0000 | ||
Stainless Steel Square-Drive Flat Head Screws for Wood and Composite Wood
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Head | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Drill Bit Size | Flat Head Profile | Approx. Threads per In. | Threading | Tapping Method | Tapping Screw Type Designation | Pkg. Qty. | Pkg. | |||
18-8 Stainless Steel | |||||||||||||
No. 6 | |||||||||||||
| 5/8" | 0.344" | 0.197" | 1/16" | Standard | 9 | Partially Threaded | Thread Cutting | 17 | 100 | 90000A143 | 000000 | ||
| 3/4" | 0.344" | 0.197" | 1/16" | Standard | 9 | Partially Threaded | Thread Cutting | 17 | 100 | 90000A147 | 00000 | ||
| 1" | 0.344" | 0.197" | 1/16" | Standard | 9 | Partially Threaded | Thread Cutting | 17 | 100 | 90000A151 | 00000 | ||
| 1 1/4" | 0.344" | 0.197" | 1/16" | Standard | 9 | Partially Threaded | Thread Cutting | 17 | 100 | 90000A155 | 00000 | ||
| 1 1/2" | 0.344" | 0.197" | 1/16" | Standard | 18 | Partially Threaded | Thread Cutting | 17 | 100 | 90000A157 | 00000 | ||
| 1 5/8" | 0.344" | 0.197" | 1/16" | Standard | 9 | Partially Threaded | Thread Cutting | 17 | 100 | 90000A159 | 00000 | ||
| 2" | 0.344" | 0.197" | 1/16" | Standard | 18 | Partially Threaded | Thread Cutting | 17 | 100 | 90000A161 | 00000 | ||
No. 7 | |||||||||||||
| 1" | 0.23" | 0.125" | 1/16" | Narrow | 10 | Partially Threaded | Thread Cutting | 17 | 50 | 91530A771 | 00000 | ||
| 1 5/8" | 0.23" | 0.125" | 1/16" | Narrow | 10 | Partially Threaded | Thread Cutting | 17 | 50 | 91530A774 | 00000 | ||
| 2" | 0.23" | 0.125" | 1/16" | Narrow | 10 | Partially Threaded | Thread Cutting | 17 | 50 | 91530A776 | 00000 | ||
| 2 1/4" | 0.23" | 0.125" | 1/16" | Narrow | 10 | Partially Threaded | Thread Cutting | 17 | 50 | 91530A778 | 00000 | ||
| 2 1/2" | 0.23" | 0.125" | 1/16" | Narrow | 10 | Partially Threaded | Thread Cutting | 17 | 50 | 91530A782 | 00000 | ||
| 3" | 0.23" | 0.125" | 1/16" | Narrow | 10 | Partially Threaded | Thread Cutting | 17 | 25 | 91530A400 | 00000 | ||
No. 8 | |||||||||||||
| 3/4" | 0.344" | 0.192" | 5/64" | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 100 | 90000A188 | 00000 | ||
| 1" | 0.344" | 0.192" | 5/64" | Standard | 15 | Partially Threaded | Thread Cutting | 17 | 100 | 90000A211 | 0000 | ||
| 1 1/4" | 0.344" | 0.192" | 5/64" | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 100 | 90000A196 | 00000 | ||
| 1 1/2" | 0.344" | 0.192" | 5/64" | Standard | 15 | Partially Threaded | Thread Cutting | 17 | 100 | 90000A212 | 00000 | ||
| 1 5/8" | 0.344" | 0.192" | 5/64" | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 50 | 90000A200 | 00000 | ||
| 1 3/4" | 0.344" | 0.192" | 5/64" | Standard | 15 | Partially Threaded | Thread Cutting | 17 | 100 | 90000A213 | 00000 | ||
| 2" | 0.344" | 0.192" | 5/64" | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 50 | 90000A205 | 00000 | ||
| 2 1/2" | 0.344" | 0.192" | 5/64" | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 50 | 90000A215 | 00000 | ||
| 2 3/4" | 0.344" | 0.192" | 5/64" | Standard | 15 | Partially Threaded | Thread Cutting | 17 | 50 | 90000A214 | 00000 | ||
| 3" | 0.344" | 0.192" | 5/64" | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 50 | 90000A219 | 00000 | ||
No. 9 | |||||||||||||
| 4" | 0.25" | 0.125" | 5/64" | Narrow | 14 | Partially Threaded | Thread Cutting | 17 | 10 | 91530A425 | 0000 | ||
No. 10 | |||||||||||||
| 1" | 0.344" | 0.189" | 3/32" | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 100 | 90000A220 | 00000 | ||
| 1 1/4" | 0.344" | 0.189" | 3/32" | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 100 | 90000A222 | 00000 | ||
| 1 1/2" | 0.344" | 0.189" | 3/32" | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 50 | 90000A224 | 00000 | ||
| 1 5/8" | 0.344" | 0.189" | 3/32" | Standard | 13 | Partially Threaded | Thread Cutting | 17 | 50 | 90000A311 | 00000 | ||
| 1 3/4" | 0.344" | 0.189" | 3/32" | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 50 | 90000A226 | 00000 | ||
| 2" | 0.344" | 0.189" | 3/32" | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 50 | 90000A228 | 00000 | ||
| 2 1/4" | 0.344" | 0.189" | 3/32" | Standard | 13 | Partially Threaded | Thread Cutting | 17 | 50 | 90000A312 | 00000 | ||
| 2 1/2" | 0.344" | 0.189" | 3/32" | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 25 | 90000A255 | 00000 | ||
| 2 3/4" | 0.344" | 0.189" | 3/32" | Standard | 13 | Partially Threaded | Thread Cutting | 17 | 25 | 90000A313 | 0000 | ||
| 3" | 0.344" | 0.189" | 3/32" | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 25 | 90000A257 | 00000 | ||
| 3 3/4" | 0.344" | 0.189" | 3/32" | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 25 | 90000A265 | 00000 | ||
| 4" | 0.344" | 0.189" | 3/32" | Standard | 13 | Partially Threaded | Thread Cutting | 17 | 25 | 90000A314 | 00000 | ||
No. 12 | |||||||||||||
| 2" | 0.43" | 0.203" | 7/64" | Standard | 11 | Partially Threaded | Thread Cutting | 17 | 25 | 90000A612 | 0000 | ||
| 2 1/2" | 0.43" | 0.203" | 7/64" | Standard | 7 | Partially Threaded | Thread Cutting | 17 | 25 | 90000A601 | 00000 | ||
| 4" | 0.43" | 0.203" | 7/64" | Standard | 7 | Partially Threaded | Thread Cutting | 17 | 10 | 90000A616 | 00000 | ||
| 4 1/2" | 0.43" | 0.203" | 7/64" | Standard | 7 | Partially Threaded | Thread Cutting | 17 | 10 | 90000A622 | 00000 | ||
| 5 1/2" | 0.43" | 0.203" | 7/64" | Standard | 11 | Partially Threaded | Thread Cutting | 17 | 10 | 90000A613 | 0000 | ||
| 6" | 0.43" | 0.203" | 7/64" | Standard | 7 | Partially Threaded | Thread Cutting | 17 | 10 | 90000A633 | 00000 | ||
No. 14 | |||||||||||||
| 2" | 0.43" | 0.25" | 7/64" | Standard | 10 | Partially Threaded | Thread Cutting | 17 | 25 | 90000A711 | 00000 | ||
| 2 1/2" | 0.43" | 0.25" | 7/64" | Standard | 10 | Partially Threaded | Thread Cutting | 17 | 10 | 90000A712 | 0000 | ||
| 3" | 0.43" | 0.25" | 7/64" | Standard | 10 | Partially Threaded | Thread Cutting | 17 | 10 | 90000A713 | 0000 | ||
| 3 1/2" | 0.43" | 0.25" | 7/64" | Standard | 7 | Partially Threaded | Thread Cutting | 17 | 10 | 90000A744 | 00000 | ||
| 4" | 0.43" | 0.25" | 7/64" | Standard | 7 | Partially Threaded | Thread Cutting | 17 | 10 | 90000A749 | 00000 | ||
| 4 1/2" | 0.43" | 0.25" | 7/64" | Standard | 10 | Partially Threaded | Thread Cutting | 17 | 10 | 90000A714 | 00000 | ||
| 5" | 0.43" | 0.25" | 7/64" | Standard | 7 | Partially Threaded | Thread Cutting | 17 | 10 | 90000A755 | 00000 | ||
| 6" | 0.43" | 0.25" | 7/64" | Standard | 10 | Partially Threaded | Thread Cutting | 17 | 5 | 90000A715 | 0000 | ||
316 Stainless Steel | |||||||||||||
No. 6 | |||||||||||||
| 1 1/4" | 0.344" | 0.197" | 1/16" | Standard | 18 | Partially Threaded | Thread Cutting | 17 | 50 | 90000A401 | 0000 | ||
| 1 5/8" | 0.344" | 0.197" | 1/16" | Standard | 18 | Partially Threaded | Thread Cutting | 17 | 50 | 90000A402 | 0000 | ||
| 2" | 0.344" | 0.197" | 1/16" | Standard | 18 | Partially Threaded | Thread Cutting | 17 | 50 | 90000A403 | 0000 | ||
No. 7 | |||||||||||||
| 1 5/8" | 0.23" | 0.125" | 1/16" | Narrow | 16 | Partially Threaded | Thread Cutting | 17 | 50 | 90076A710 | 00000 | ||
| 2 1/4" | 0.23" | 0.125" | 1/16" | Narrow | 16 | Partially Threaded | Thread Cutting | 17 | 25 | 90076A720 | 00000 | ||
| 3" | 0.23" | 0.125" | 1/16" | Narrow | 16 | Partially Threaded | Thread Cutting | 17 | 25 | 90076A730 | 00000 | ||
No. 8 | |||||||||||||
| 1 1/4" | 0.344" | 0.192" | 5/64" | Standard | 15 | Partially Threaded | Thread Cutting | 17 | 50 | 90000A281 | 00000 | ||
| 1 1/2" | 0.344" | 0.192" | 5/64" | Standard | 15 | Partially Threaded | Thread Cutting | 17 | 50 | 90000A404 | 0000 | ||
| 1 5/8" | 0.344" | 0.192" | 5/64" | Standard | 15 | Partially Threaded | Thread Cutting | 17 | 50 | 90000A290 | 00000 | ||
| 2" | 0.344" | 0.192" | 5/64" | Standard | 15 | Partially Threaded | Thread Cutting | 17 | 50 | 90000A291 | 00000 | ||
| 2 1/4" | 0.344" | 0.192" | 5/64" | Standard | 15 | Partially Threaded | Thread Cutting | 17 | 50 | 90000A405 | 00000 | ||
| 3" | 0.344" | 0.192" | 5/64" | Standard | 15 | Partially Threaded | Thread Cutting | 17 | 25 | 90000A406 | 0000 | ||
No. 10 | |||||||||||||
| 1 5/8" | 0.344" | 0.189" | 3/32" | Standard | 13 | Partially Threaded | Thread Cutting | 17 | 25 | 90000A407 | 0000 | ||
| 2 1/2" | 0.344" | 0.189" | 3/32" | Standard | 13 | Partially Threaded | Thread Cutting | 17 | 25 | 90000A293 | 00000 | ||
| 3" | 0.344" | 0.189" | 3/32" | Standard | 13 | Partially Threaded | Thread Cutting | 17 | 25 | 90000A294 | 00000 | ||
| 3 1/2" | 0.344" | 0.189" | 3/32" | Standard | 13 | Partially Threaded | Thread Cutting | 17 | 25 | 90000A295 | 00000 | ||
| 4" | 0.344" | 0.189" | 3/32" | Standard | 13 | Partially Threaded | Thread Cutting | 17 | 10 | 90000A408 | 0000 | ||
No. 12 | |||||||||||||
| 2" | 0.43" | 0.203" | 7/64" | Standard | 11 | Partially Threaded | Thread Cutting | 17 | 10 | 90000A409 | 0000 | ||
| 2 1/2" | 0.43" | 0.203" | 7/64" | Standard | 11 | Partially Threaded | Thread Cutting | 17 | 25 | 90000A297 | 00000 | ||
| 3" | 0.43" | 0.203" | 7/64" | Standard | 11 | Partially Threaded | Thread Cutting | 17 | 25 | 90000A298 | 00000 | ||
| 4" | 0.43" | 0.203" | 7/64" | Standard | 11 | Partially Threaded | Thread Cutting | 17 | 10 | 90000A300 | 0000 | ||
| 4 1/2" | 0.43" | 0.203" | 7/64" | Standard | 11 | Partially Threaded | Thread Cutting | 17 | 10 | 90000A303 | 00000 | ||
| 5" | 0.43" | 0.203" | 7/64" | Standard | 11 | Partially Threaded | Thread Cutting | 17 | 10 | 90000A305 | 00000 | ||
No. 14 | |||||||||||||
| 3" | 0.43" | 0.25" | 7/64" | Standard | 10 | Partially Threaded | Thread Cutting | 17 | 10 | 90000A411 | 0000 | ||
| 4" | 0.43" | 0.25" | 7/64" | Standard | 10 | Partially Threaded | Thread Cutting | 17 | 5 | 90000A413 | 0000 | ||
| 5" | 0.43" | 0.25" | 7/64" | Standard | 10 | Partially Threaded | Thread Cutting | 17 | 5 | 90000A414 | 0000 | ||
| 6" | 0.43" | 0.25" | 7/64" | Standard | 10 | Partially Threaded | Thread Cutting | 17 | 5 | 90000A415 | 0000 | ||
Steel Phillips/Square-Drive Pancake Head Drilling Screws
 |  |
Secure framing to metal where clearance is too tight for other rounded-head screws. Also known as panel clip screws, these have a slim pancake head that creates a nearly flush finish. The head’s flat underside makes more contact for a better hold on thin materials, such as sheet metal. Drill and fasten screws in one step using a Phillips driver. For more torque, you can also use a square driver.
Length is measured from under the head.
Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
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Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Serrated Stainless Steel Square-Drive Flat Head Wood Screws
 |
Head | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Drill Bit Size | Countersink Angle | Flat Head Profile | Approx. Threads per In. | Threading | Tapping Method | Tapping Screw Type Designation | Pkg. Qty. | Pkg. | |||
18-8 Stainless Steel | ||||||||||||||
No. 6 | ||||||||||||||
| 1 5/8" | 0.279" | 0.083" | 32 Ga. | 90° | Standard | 9 | Partially Threaded | Thread Cutting | 17 | 25 | 98643A651 | 00000 | ||
No. 8 | ||||||||||||||
| 1 1/4" | 0.311" | 0.088" | 29 Ga. | 90° | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 25 | 98643A652 | 0000 | ||
| 1 1/2" | 0.311" | 0.088" | 29 Ga. | 90° | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 25 | 98643A653 | 00000 | ||
| 1 5/8" | 0.311" | 0.088" | 3/32" | 90° | Standard | 15 | Partially Threaded | Thread Cutting | 17 | 25 | 98643A350 | 0000 | ||
| 1 3/4" | 0.311" | 0.088" | 29 Ga. | 90° | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 25 | 98643A654 | 00000 | ||
| 2" | 0.311" | 0.088" | 3/32" | 90° | Standard | 15 | Partially Threaded | Thread Cutting | 17 | 25 | 98643A370 | 00000 | ||
| 2 1/2" | 0.311" | 0.088" | 3/32" | 90° | Standard | 15 | Partially Threaded | Thread Cutting | 17 | 10 | 98643A390 | 0000 | ||
| 3" | 0.311" | 0.088" | 29 Ga. | 90° | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 10 | 98643A655 | 0000 | ||
No. 10 | ||||||||||||||
| 2 1/2" | 0.378" | 0.11" | 7/64" | 90° | Standard | 13 | Partially Threaded | Thread Cutting | 17 | 10 | 98643A610 | 0000 | ||
| 3" | 0.378" | 0.11" | 7/64" | 90° | Standard | 13 | Partially Threaded | Thread Cutting | 17 | 10 | 98643A640 | 0000 | ||
| 3 1/2" | 0.378" | 0.11" | 24 Ga. | 90° | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 10 | 98643A656 | 00000 | ||
| 4" | 0.378" | 0.11" | 24 Ga. | 90° | Standard | 8 | Partially Threaded | Thread Cutting | 17 | 5 | 98643A657 | 0000 | ||
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 Designation | 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 | ||
Square-Drive Small-Head Drilling Drywall Screws for Metal Framing
 |
These screws have a drill point that powers through drywall and into metal studs up to 0.105" thick. Heads are one-third smaller than those of other drywall screws.
Black Phosphate-Coated Steel—Black phosphate-coated steel screws resist corrosion in dry environments.
Length—Length is measured from the top of the head.
Head | Drive | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Drill Point Size | Drill Tip Lg. | Dia. | Ht. | Size | Style | Max. Drilling Thk. | Approx. Threads per In. | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |||
Black Phosphate-Coated Steel | |||||||||||||||
No. 6 Screw Size | |||||||||||||||
| 1 5/8" | No. 2 | 9/64" | 0.225" | 0.113" | No. 1 | Square | 0.105" | 20 | Partially Threaded | 7/8" | 100 | 90330A500 | 00000 | ||
| 2 1/4" | No. 2 | 9/64" | 0.195" | 0.113" | No. 1 | Square | 0.105" | 20 | Partially Threaded | 1 1/4" | 100 | 90330A600 | 00000 | ||
