About Tapping Screws
More
Flat Head Screws for Particleboard and Fiberboard
Black Oxide
Zinc Plated
Beveled under the head for use in countersunk holes. Sharp, angled threads cut into particleboard, medium-density fiberboard (MDF), and hardboard such as masonite without splitting. Length is measured from the top of the head.
Black-oxide steel screws are mildly corrosion resistant in dry environments.
Zinc-plated steel screws resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Head | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg. | Dia. | Dia. Tolerance | Ht. | Drive Size | Drill Bit Size | Approximate Threads per Inch | Threading | Min. Thread Lg. | Pkg. Qty. | Pkg. | |
Black-Oxide Steel | |||||||||||
No. 6  | |||||||||||
| 1/2" | 0.279" | -0.035" | 0.083" | No. 2 | 1/16" | 13 | Fully Threaded | __ | 100 | 000000000 | 000000 |
| 5/8" | 0.279" | -0.035" | 0.083" | No. 2 | 1/16" | 13 | Fully Threaded | __ | 100 | 000000000 | 0000 |
| 3/4" | 0.279" | -0.035" | 0.083" | No. 2 | 1/16" | 13 | Fully Threaded | __ | 100 | 000000000 | 0000 |
| 1" | 0.279" | -0.035" | 0.083" | No. 2 | 1/16" | 13 | Fully Threaded | __ | 100 | 000000000 | 00000 |
| 1 1/8" | 0.279" | -0.035" | 0.083" | No. 2 | 1/16" | 13 | Partially Threaded | 3/4" | 100 | 000000000 | 0000 |
| 1 1/4" | 0.279" | -0.035" | 0.083" | No. 2 | 1/16" | 13 | Partially Threaded | 0.838" | 100 | 000000000 | 00000 |
| 1 1/2" | 0.279" | -0.035" | 0.083" | No. 2 | 1/16" | 13 | Partially Threaded | 1" | 100 | 000000000 | 00000 |
No. 8 | |||||||||||
| 1/2" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Fully Threaded | __ | 100 | 000000000 | 0000 |
| 5/8" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Fully Threaded | __ | 100 | 000000000 | 0000 |
| 3/4" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Fully Threaded | __ | 100 | 000000000 | 0000 |
| 1" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Fully Threaded | __ | 100 | 000000000 | 00000 |
| 1 1/8" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 3/4" | 100 | 000000000 | 0000 |
| 1 1/4" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 0.838" | 100 | 000000000 | 00000 |
| 1 3/8" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 0.92" | 100 | 000000000 | 0000 |
| 1 1/2" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 1" | 100 | 000000000 | 00000 |
| 1 5/8" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 1.09" | 100 | 000000000 | 00000 |
| 1 3/4" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 1.17" | 100 | 000000000 | 00000 |
| 2" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 1.34" | 100 | 000000000 | 00000 |
| 2 1/4" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 1.485" | 100 | 000000000 | 00000 |
| 2 1/2" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 1.675" | 50 | 000000000 | 00000 |
| 2 3/4" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 1.84" | 50 | 000000000 | 00000 |
| 3" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 2.01" | 50 | 000000000 | 00000 |
| 3 1/8" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 2.09" | 50 | 000000000 | 00000 |
No. 9 | |||||||||||
| 3/4" | 0.358" | -0.042" | 0.108" | No. 2 | No. 45 | 10 | Fully Threaded | __ | 100 | 000000000 | 0000 |
| 1" | 0.358" | -0.042" | 0.108" | No. 2 | No. 45 | 10 | Fully Threaded | __ | 100 | 000000000 | 00000 |
| 1 1/4" | 0.358" | -0.042" | 0.108" | No. 2 | No. 45 | 10 | Partially Threaded | 0.838" | 100 | 000000000 | 00000 |
| 1 1/2" | 0.358" | -0.042" | 0.108" | No. 2 | No. 45 | 10 | Partially Threaded | 1" | 100 | 000000000 | 00000 |
| 1 3/4" | 0.358" | -0.042" | 0.108" | No. 2 | No. 45 | 10 | Partially Threaded | 1.17" | 50 | 000000000 | 0000 |
| 2 1/2" | 0.358" | -0.042" | 0.108" | No. 2 | No. 45 | 10 | Partially Threaded | 1.675" | 50 | 000000000 | 00000 |
| 3" | 0.358" | -0.042" | 0.108" | No. 2 | No. 45 | 10 | Partially Threaded | 2.01" | 50 | 000000000 | 00000 |
No. 10 | |||||||||||
| 3/4" | 0.385" | -0.045" | 0.116" | No. 3 | 3/32" | 9 | Fully Threaded | __ | 100 | 000000000 | 00000 |
| 1" | 0.385" | -0.045" | 0.116" | No. 3 | 3/32" | 9 | Fully Threaded | __ | 100 | 000000000 | 00000 |
| 1 1/4" | 0.385" | -0.045" | 0.116" | No. 3 | 3/32" | 9 | Partially Threaded | 0.838" | 100 | 000000000 | 00000 |
| 1 1/2" | 0.385" | -0.045" | 0.116" | No. 3 | 3/32" | 9 | Partially Threaded | 1" | 100 | 000000000 | 00000 |
| 1 3/4" | 0.385" | -0.045" | 0.116" | No. 3 | 3/32" | 9 | Partially Threaded | 1.17" | 50 | 000000000 | 00000 |
| 2" | 0.385" | -0.045" | 0.116" | No. 3 | 3/32" | 9 | Partially Threaded | 1.34" | 50 | 000000000 | 00000 |
| 2 1/2" | 0.385" | -0.045" | 0.116" | No. 3 | 3/32" | 9 | Partially Threaded | 1.675" | 50 | 000000000 | 00000 |
| 3" | 0.385" | -0.045" | 0.116" | No. 3 | 3/32" | 9 | Partially Threaded | 2.01" | 25 | 000000000 | 00000 |
Zinc-Plated Steel | |||||||||||
No. 4 | |||||||||||
| 5/8" | 0.225" | -0.03" | 0.067" | No. 1 | 3/64" | 14 | Fully Threaded | __ | 100 | 000000000 | 00000 |
No. 5 | |||||||||||
| 1/2" | 0.252" | -0.032" | 0.075" | No. 2 | 1/16" | 14 | Fully Threaded | __ | 100 | 000000000 | 00000 |
| 5/8" | 0.252" | -0.032" | 0.075" | No. 2 | 1/16" | 14 | Fully Threaded | __ | 100 | 000000000 | 00000 |
No. 6 | |||||||||||
| 7/16" | 0.279" | -0.035" | 0.083" | No. 2 | 1/16" | 13 | Fully Threaded | __ | 100 | 000000000 | 00000 |
| 1/2" | 0.279" | -0.035" | 0.083" | No. 2 | 1/16" | 13 | Fully Threaded | __ | 100 | 000000000 | 00000 |
| 5/8" | 0.279" | -0.035" | 0.083" | No. 2 | 1/16" | 13 | Fully Threaded | __ | 100 | 000000000 | 00000 |
| 3/4" | 0.279" | -0.035" | 0.083" | No. 2 | 1/16" | 13 | Fully Threaded | __ | 100 | 000000000 | 00000 |
| 1" | 0.279" | -0.035" | 0.083" | No. 2 | 1/16" | 13 | Fully Threaded | __ | 100 | 000000000 | 00000 |
| 1 1/4" | 0.279" | -0.035" | 0.083" | No. 2 | 1/16" | 13 | Partially Threaded | 0.838" | 100 | 000000000 | 00000 |
| 1 1/2" | 0.279" | -0.035" | 0.083" | No. 2 | 1/16" | 13 | Partially Threaded | 1" | 100 | 000000000 | 00000 |
No. 7 | |||||||||||
| 5/8" | 0.305" | -0.037" | 0.091" | No. 2 | No. 49 | 12 | Fully Threaded | __ | 100 | 000000000 | 00000 |
No. 8 | |||||||||||
| 5/8" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Fully Threaded | __ | 100 | 000000000 | 00000 |
| 3/4" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Fully Threaded | __ | 100 | 000000000 | 00000 |
| 1" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Fully Threaded | __ | 100 | 000000000 | 00000 |
| 1 1/4" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 0.838" | 50 | 000000000 | 00000 |
| 1 1/2" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 1" | 50 | 000000000 | 00000 |
| 1 5/8" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 1.09" | 50 | 000000000 | 00000 |
| 1 3/4" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 1.17" | 50 | 000000000 | 00000 |
| 2" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 1.34" | 50 | 000000000 | 00000 |
| 2 1/2" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 1.675" | 25 | 000000000 | 00000 |
| 3" | 0.332" | -0.04" | 0.1" | No. 2 | 5/64" | 11 | Partially Threaded | 2.01" | 25 | 000000000 | 00000 |