Drive Screws
Drive screws are designed for heavy duty fastening applications. Also known as U-drive screws, hammer drive screws, or unslotted round head screws, drive screws’ rounded head style and unique construction make them strong and durable for long-lasting strength. Hammer drive screws are commonly used for attaching nameplates, wall signs, and other similar applications.
Jay-Cee Sales & Rivet stocks drive screws in a wide range of sizes, lengths, and materials. With over 160 options to choose from, it’s easy to find the right drive screws for your project. See individual product listings for additional information and specifications.
| Nominal Screw Size |
Number of Thread Starts |
D | A | H | P | Recommended Hole Size |
|||||
| Outside Diameter | Head Diameter | Head Height | Pilot Diameter | ||||||||
| Max | Min | Max | Min | Max | Min | Max | Min | Drill Size No. |
Hole Diameter |
||
| 00 | 6 | .060 | .057 | .099 | .090 | .034 | .026 | .049 | .046 | 55 | .052 |
| 0 | 6 | .075 | .072 | .127 | .118 | .049 | .041 | .063 | .060 | 51 | .067 |
| 2 | 8 | .100 | .097 | .162 | .146 | .069 | .059 | .083 | .080 | 44 | .086 |
| 4 | 7 | .116 | .112 | .211 | .193 | .086 | .075 | .096 | .092 | 37 | .104 |
| 6 | 7 | .140 | .136 | .260 | .240 | .103 | .091 | .116 | .112 | 31 | .120 |
| 7 | 8 | .154 | .150 | .285 | .264 | .111 | .099 | .126 | .122 | 29 | .136 |
| 8 | 8 | .167 | .162 | .309 | .287 | .120 | .107 | .136 | .132 | 27 | .144 |
| 10 | 8 | .182 | .177 | .359 | .334 | .137 | .123 | .150 | .146 | 20 | .161 |
| 12 | 8 | .212 | .206 | .408 | .382 | .153 | .139 | .177 | .173 | 11 | .191 |
| 14 | 9 | .242 | .236 | .457 | .429 | .170 | .155 | .202 | .198 | 2 | .221 |
| L | Nom. Screw Length | 1/8 | 3/16 | 1/4 | 5/16 | 3/8 | 1/2 | 5/8 | 3/4 | 1 in and over |
| S | Pilot Length | .047 | .047 | .047 | .047 | .062 | .062 | .078 | .078 | .125 |
Drive Screw Features
Drive screws feature round, unslotted heads, multiple start threads with large helical angles, and an unthreaded pilot point. Similar to nails, hammer drive screws are driven into mating parts with a mallet, hammer, or hammer-drive device for quick and permanent assembly. No tapping threads are required in the mating part, but an undersized predrilled pilot hole is required, and the U-drive screw must be made of harder material than the mating parts.
Drive Screw Options
Head Style
- Unslotted round head screws
Material
- Black oxide coated drive screws
- Zinc plated steel drive screws
- 18-8 stainless steel drive screws
- 316 stainless steel drive screws
Size
- #2
- #3
- #4
- #5
- #6
- #7
- #8
- #10
- #12
- #14
- #0
- #00
- #5/16
Length
- 1/8”
- 3/16”
- 1/4”
- 5/16”
- 3/8”
- 1/2”
- 5/8”
- 3/4”
- 1”
- 1-1/4”