About Flat Head Screws
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Metric Steel Torx Flat Head Screws
These screws are twice as strong as standard steel Torx flat head screws. A Torx or Torx-Plus drive has more points of contact than other drives, allowing you to tighten the screw without damaging the recess. For Torx tools, see Torx and Torx-Plus bits, keys, and drivers. Torx-Plus screws can be used with both Torx-Plus and Torx tools. They’re angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.
Black-oxide steel screws have a coating that protects the steel from rusting in dry environments and blends in with dark surfaces.
For technical drawings and 3-D models, click on a part number.
Drive | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Lg., mm | Threading | Head Dia., mm | Head Ht., mm | Style | Size | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Oxide Class 12.9 Alloy Steel | ||||||||||
M3 × 0.5 mm | ||||||||||
| 5 | Fully Threaded | 6.72 | 1.86 | Torx Plus | IP10, T10 | 140,000 | ASME B18.3.5M | 100 | 000000000 | 000000 |
| 6 | Fully Threaded | 6.72 | 1.86 | Torx Plus | IP10, T10 | 140,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
| 8 | Fully Threaded | 6.72 | 1.86 | Torx Plus | IP10, T10 | 140,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
| 10 | Fully Threaded | 6.72 | 1.86 | Torx Plus | IP10, T10 | 140,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
| 12 | Fully Threaded | 6.72 | 1.86 | Torx Plus | IP10, T10 | 140,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
M4 × 0.7 mm | ||||||||||
| 6 | Fully Threaded | 8.94 | 2.48 | Torx Plus | IP20, T20 | 140,000 | ASME B18.3.5M | 100 | 000000000 | 0000 |
| 8 | Fully Threaded | 8.94 | 2.48 | Torx Plus | IP20, T20 | 140,000 | ASME B18.3.5M | 100 | 000000000 | 0000 |
| 10 | Fully Threaded | 8.94 | 2.48 | Torx Plus | IP20, T20 | 140,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
| 12 | Fully Threaded | 8.94 | 2.48 | Torx Plus | IP20, T20 | 140,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
| 16 | Fully Threaded | 8.94 | 2.48 | Torx Plus | IP20, T20 | 140,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
M5 × 0.8 mm | ||||||||||
| 8 | Fully Threaded | 11.2 | 3.1 | Torx Plus | IP25, T25 | 140,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
| 10 | Fully Threaded | 11.2 | 3.1 | Torx Plus | IP25, T25 | 140,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
| 12 | Fully Threaded | 11.2 | 3.1 | Torx Plus | IP25, T25 | 140,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
| 16 | Fully Threaded | 11.2 | 3.1 | Torx Plus | IP25, T25 | 140,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
| 20 | Fully Threaded | 11.2 | 3.1 | Torx Plus | IP25, T25 | 140,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
M6 × 1 mm | ||||||||||
| 12 | Fully Threaded | 13.44 | 3.72 | Torx Plus | IP30, T30 | 140,000 | ASME B18.3.5M | 50 | 000000000 | 00000 |
| 16 | Fully Threaded | 13.44 | 3.72 | Torx Plus | IP30, T30 | 140,000 | ASME B18.3.5M | 50 | 000000000 | 00000 |
| 20 | Fully Threaded | 13.44 | 3.72 | Torx Plus | IP30, T30 | 140,000 | ASME B18.3.5M | 50 | 000000000 | 00000 |
| 25 | Fully Threaded | 13.44 | 3.72 | Torx Plus | IP30, T30 | 140,000 | ASME B18.3.5M | 50 | 000000000 | 00000 |
| 30 | Fully Threaded | 13.44 | 3.72 | Torx Plus | IP30, T30 | 140,000 | ASME B18.3.5M | 50 | 000000000 | 00000 |
Metric 18-8 Stainless Steel Torx Flat Head Screws
These 18-8 stainless steel screws have good chemical resistance and may be mildly magnetic. Screws are passivated for added protection against oxidation and corrosion. Torx and Torx-Plus drives have more points of contact than other drives, allowing you to tighten the screw without damaging the recess. For Torx tools, see Torx and Torx-Plus bits, keys, and drivers . Screws are angled under the head to sit flush within countersunk holes. Length is measured from the top of the head.
Drive | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lg., mm | Threading | Head Dia., mm | Head Ht., mm | Style | Size | Finish | Tensile Strength, psi | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||||
M3 × 0.5 mm | |||||||||||
| 5 | Fully Threaded | 6.72 | 1.86 | Torx Plus | IP10, T10 | Passivated | 80,000 | ASME B18.3.5M | 100 | 000000000 | 000000 |
| 6 | Fully Threaded | 6.72 | 1.86 | Torx Plus | IP10, T10 | Passivated | 80,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
| 8 | Fully Threaded | 6.72 | 1.86 | Torx Plus | IP10, T10 | Passivated | 80,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
| 10 | Fully Threaded | 6.72 | 1.86 | Torx Plus | IP10, T10 | Passivated | 80,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
| 12 | Fully Threaded | 6.72 | 1.86 | Torx Plus | IP10, T10 | Passivated | 80,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
M4 × 0.7 mm | |||||||||||
| 6 | Fully Threaded | 8.94 | 2.48 | Torx Plus | IP20, T20 | Passivated | 80,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
| 8 | Fully Threaded | 8.94 | 2.48 | Torx Plus | IP20, T20 | Passivated | 80,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
| 10 | Fully Threaded | 8.94 | 2.48 | Torx Plus | IP20, T20 | Passivated | 80,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
| 12 | Fully Threaded | 8.94 | 2.48 | Torx Plus | IP20, T20 | Passivated | 80,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |
| 16 | Fully Threaded | 8.94 | 2.48 | Torx Plus | IP20, T20 | Passivated | 80,000 | ASME B18.3.5M | 100 | 000000000 | 00000 |