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DFARS Specialty Metals
Stainless Steel Square-Drive Flat Head Screws for Wood and Composite Wood
 |
Head | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Drill Bit Size | Flat Head Profile | Approx. Threads per In. | Threading | Tapping Method | Tapping Screw Type | 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 Flat Head Drilling Screws for Joining Wood to Sheet Metal
 |  |
With Cutting Wings | Without Cutting Wings |
Join wood to sheet metal by drilling, tapping, and fastening in one go. These screws have a self-drilling tip to clear the way while their threads tap into the material. The flat head sits flush, so you won't need to worry about snags. The Phillips drive handles enough torque to drive into most kinds of wood without slipping.
Length is measured from the top of the head.
Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
Corrosion-Resistant-Coated Steel—Resist rust at the level of stainless steel. This coating has been tested against extreme standards for wet and outdoor environments, including 1,000 hours of salt spray.
Cutting-Winged Body—These wings create a tight hold by preventing screw threads from engaging until they reach the sheet metal. Then, the wings snap off so the screw can switch from drilling through wood to fastening into metal.
Head | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Drill Point Size | Drill Tip Lg. | For Wood Thk. Range | For Metal Thk. Range | Body Type | Flat Head Profile | Approx. Threads per In. | Threading | Tapping Method | Pkg. Qty. | Pkg. | |||
Zinc-Plated Steel | ||||||||||||||||
10-24 | ||||||||||||||||
| 3 1/2" | 0.362" | 0.116" | No. 4 | 3/8" | 0.75" to 2.5" | 0.11" to 0.21" | Cutting Wings | Standard | — | Fully Threaded | Thread Forming | 10 | 94054A211 | 00000 | ||
| 4" | 0.362" | 0.116" | No. 4 | 3/8" | 0.75" to 2.75" | 0.11" to 0.21" | Cutting Wings | Standard | — | Fully Threaded | Thread Forming | 5 | 94054A212 | 0000 | ||
12-24 | ||||||||||||||||
| 2" | 0.412" | 0.132" | No. 4 | 7/16" | 0.5" to 1.25" | 0.11" to 0.25" | Cutting Wings | Standard | — | Fully Threaded | Thread Forming | 10 | 94054A213 | 00000 | ||
| 2 1/2" | 0.412" | 0.132" | No. 4 | 7/16" | 0.5" to 1.5" | 0.11" to 0.25" | Cutting Wings | Standard | — | Fully Threaded | Thread Forming | 10 | 94054A214 | 00000 | ||
| 3 1/2" | 0.412" | 0.132" | No. 4 | 7/16" | 0.75" to 2.5" | 0.11" to 0.25" | Cutting Wings | Standard | — | Fully Threaded | Thread Forming | 5 | 94054A215 | 0000 | ||
| 4" | 0.412" | 0.132" | No. 4 | 7/16" | 0.75" to 2.625" | 0.11" to 0.25" | Cutting Wings | Standard | — | Fully Threaded | Thread Forming | 5 | 94054A216 | 00000 | ||
1/4"-20 | ||||||||||||||||
| 2 3/4" | 0.472" | 0.153" | No. 4 | 1/2" | 0.75" to 1.75" | 0.11" to 0.375" | Cutting Wings | Standard | — | Fully Threaded | Thread Forming | 10 | 94054A217 | 00000 | ||
| 3 1/4" | 0.472" | 0.153" | No. 4 | 1/2" | 0.75" to 2.25" | 0.11" to 0.375" | Cutting Wings | Standard | — | Fully Threaded | Thread Forming | 5 | 94054A218 | 00000 | ||
| 3 1/2" | 0.472" | 0.153" | No. 4 | 1/2" | 0.75" to 2.5" | 0.11" to 0.375" | Cutting Wings | Standard | — | Fully Threaded | Thread Forming | 5 | 94054A219 | 00000 | ||
| 3 3/4" | 0.472" | 0.153" | No. 4 | 1/2" | 0.75" to 2.75" | 0.11" to 0.375" | Cutting Wings | Standard | — | Fully Threaded | Thread Forming | 5 | 94054A221 | 00000 | ||
Corrosion-Resistant-Coated Steel | ||||||||||||||||
No. 10 | ||||||||||||||||
| 1 1/2" | 0.48" | 0.144" | No. 3 | 1/4" | 0.25" to 0.75" | 0.04" to 0.18" | — | Standard | 16 | Fully Threaded | Thread Forming | 100 | 94054A251 | 00000 | ||
| 1 13/16" | 0.47" | 0.135" | No. 3 | 13/16" | 0.25" to 0.75" | 0.04" to 0.15" | — | Standard | 16 | Fully Threaded | Thread Forming | 50 | 94054A222 | 0000 | ||
10-24 | ||||||||||||||||
| 3/4" | 0.48" | 0.144" | No. 3 | 1/4" | 0.25" to 0.375" | 0.04" to 0.17" | — | Standard | — | Fully Threaded | Thread Forming | 100 | 94054A245 | 0000 | ||
| 1" | 0.48" | 0.144" | No. 3 | 1/4" | 0.25" to 0.5" | 0.04" to 0.17" | — | Standard | — | Fully Threaded | Thread Forming | 100 | 94054A247 | 00000 | ||
| 1 1/4" | 0.48" | 0.144" | No. 3 | 1/4" | 0.25" to 0.75" | 0.04" to 0.17" | — | Standard | — | Fully Threaded | Thread Forming | 100 | 94054A249 | 0000 | ||
| 1 7/16" | 0.41" | 0.17" | No. 3 | 1/4" | 0.25" to 0.75" | 0.06" to 0.17" | Cutting Wings | Standard | — | Fully Threaded | Thread Forming | 50 | 94054A301 | 00000 | ||
12-24 | ||||||||||||||||
| 1 5/8" | 0.476" | 0.25" | No. 4 | 7/16" | 0.75" to 1.125" | 0.13" to 0.25" | Cutting Wings | Standard | — | Fully Threaded | Thread Forming | 50 | 94054A401 | 00000 | ||
| 1 3/4" | 0.54" | 0.165" | No. 4 | 3/4" | 0.5" to 0.75" | 0.06" to 0.31" | Cutting Wings | Standard | — | Fully Threaded | Thread Forming | 50 | 94054A223 | 00000 | ||
| 2 1/4" | 0.438" | 0.16" | No. 4 | 1/2" | 0.75" to 1.375" | 0.13" to 0.25" | Cutting Wings | Standard | — | Fully Threaded | Thread Forming | 10 | 94053A110 | 00000 | ||
| 2 3/4" | 0.438" | 0.16" | No. 4 | 1/2" | 0.75" to 1.625" | 0.13" to 0.25" | Cutting Wings | Standard | — | Fully Threaded | Thread Forming | 10 | 94053A120 | 00000 | ||
1/4"-20 | ||||||||||||||||
| 3" | 0.507" | 0.175" | No. 4 | 1/2" | 0.75" to 2" | 0.13" to 0.25" | Cutting Wings | Standard | — | Fully Threaded | Thread Forming | 25 | 94053A130 | 00000 | ||
| 4" | 0.485" | 0.185" | No. 4 | 7/8" | 0.75" to 2.875" | 0.06" to 0.31" | Cutting Wings | Standard | — | Partially Threaded | Thread Forming | 10 | 94054A225 | 0000 | ||
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 | 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 | ||
Stainless Steel Phillips Flat Head Drilling Screws for Joining Wood to Sheet Metal
 |
With Cutting Wings |
 |
Without Cutting Wings |
These rust-resistant screws join wood to sheet metal by drilling, tapping, and fastening in one go. Their self-drilling tip clears the way while their threads tap into the material. Made of stainless steel, they also won't degrade from chemically treated wood, such as ACQ-treated (arsenic-free) lumber. The flat head sits flush, so you won't need to worry about snags. The Phillips drive handles enough torque to drive into most kinds of wood without slipping.
Length is measured from the top of the head.
Galvanic-Barrier-Coated 18-8 Stainless Steel—A protective layer stops corrosion from metal-to-metal contact. A good choice for outdoor and wet environments, these screws also won't rust.
Cutting-Winged Body—These wings create a tight hold by preventing screw threads from engaging until they reach the sheet metal. Then, the wings snap off so the screw can switch from drilling through wood to fastening into metal.
Head | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Drill Point Size | Drill Tip Lg. | Body Type | Flat Head Profile | Approx. Threads per In. | Threading | Tapping Method | Pkg. Qty. | Pkg. | |||
Galvanic-Barrier-Coated 18-8 Stainless Steel | ||||||||||||||
No. 10 | ||||||||||||||
| 1 1/2" | 0.37" | 0.178" | No. 3 | 1/4" | Cutting Wings | Standard | 16 | Fully Threaded | Thread Forming | 10 | 90420A720 | 000000 | ||
No. 12 | ||||||||||||||
| 1" | 0.415" | 0.09" | No. 2 | 19/64" | — | Undercut | 14 | Fully Threaded | Thread Forming | 10 | 90420A760 | 0000 | ||
| 1 1/2" | 0.415" | 0.09" | No. 2 | 19/64" | — | Undercut | 14 | Fully Threaded | Thread Forming | 10 | 90420A763 | 00000 | ||
| 2 13/16" | 0.415" | 0.2" | No. 5 | 45/64" | Cutting Wings | Standard | 14 | Partially Threaded | Thread Forming | 5 | 90420A724 | 0000 | ||
1/4"-20 | ||||||||||||||
| 2 13/16" | 0.48" | 0.2" | No. 5 | 45/64" | Cutting Wings | Standard | — | Partially Threaded | Thread Forming | 5 | 90420A728 | 00000 | ||
| 3" | 0.48" | 0.1" | No. 3 | 5/16" | — | Undercut | — | Partially Threaded | Thread Forming | 5 | 90420A766 | 00000 | ||
| 4" | 0.48" | 0.1" | No. 3 | 5/16" | — | Undercut | — | Partially Threaded | Thread Forming | 5 | 90420A769 | 00000 | ||
Distortion-Free Screws for Composite Wood
 |
Head | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Dia. | Ht. | Drill Bit Size | Rounded Head Profile | Approx. Threads per In. | Threading | Tapping Method | Tapping Screw Type | Pkg. Qty. | Pkg. | |||
18-8 Stainless Steel | |||||||||||||
No. 10 | |||||||||||||
| 2 1/2" | 0.317" | 0.087" | 3/32" | Narrow | 9 | Fully Threaded | Thread Cutting | 17 | 25 | 98419A330 | 000000 | ||
| 2 3/4" | 0.266" | 0.11" | 3/32" | Narrow | 13 | Fully Threaded | Thread Cutting | 17 | 25 | 98419A440 | 00000 | ||
Steel Torx Flat Head Drilling Screws for Joining Wood to Sheet Metal
 |
These Torx screws join wood to sheet metal by drilling, tapping, and fastening in one go. Their self-drilling tip clears the way while their threads tap into the material. With a deep six-lobe opening, the Torx drive handles more torque than slotted, Phillips, and hex drives. The flat head deters snags.
Length is measured from the top of the head.
Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
Head | |||||||||||||||
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Lg. | Dia. | Ht. | Drill Point Size | Drill Tip Lg. | For Wood Thk. Range | For Metal Thk. Range | Flat Head Profile | Approx. Threads per In. | Threading | Tapping Method | Pkg. Qty. | Pkg. | |||
Zinc-Plated Steel | |||||||||||||||
No. 10 | |||||||||||||||
| 1" | 0.48" | 0.136" | No. 3 | 1/4" | 0.25" to 0.375" | 0.11" to 0.21" | Standard | 16 | Fully Threaded | Thread Forming | 50 | 90425A460 | 000000 | ||
| 1 1/4" | 0.48" | 0.136" | No. 3 | 1/4" | 0.375" to 0.5" | 0.11" to 0.21" | Standard | 16 | Fully Threaded | Thread Forming | 50 | 90425A461 | 00000 | ||
Sealing Screws for Wood and Composite Wood
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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 | ||
Drilling Screw-Style Hangers
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Drill holes with the point on these hangers. Install with a special driver bit (sold separately).
Zinc-Yellow-Chromate-Plated Steel—Zinc-yellow-chromate-plated hangers are corrosion resistant in wet environments.
7/16" Wide Head—Some hangers with a 7/16" head width can drill through steel as thick as 12 ga.; others can drill through sheet metal and wood.
