

Thread Diameter: M2~M8
Thread Pitch: 0.4mm~1.25mm
Standards: ASME, BS, DIN, ISO, UNI, DIN-EN
MOQ: 2Tons

| k | t | |||||||
| d | p | |||||||
| M2 | 0.4 | 4 | 3.7 | 1.6 | 1.16 | 0.77 | 0.63 | 6 |
| M2.5 | 0.45 | 5 | 4.7 | 2.1 | 1.96 | 1.04 | 0.91 | 8 |
| M3 | 0.5 | 4.5 | 5.3 | 2.4 | 2.26 | 1.27 | 1.01 | 10 |
| M3.5 | 0.6 | 7 | 6.64 | 2.6 | 2.46 | 1.33 | 1.07 | 15 |
| M4 | 0.7 | 8 | 7.64 | 3.1 | 2.92 | 1.66 | 1.27 | 20 |
| M5 | 0.8 | 9.5 | 9.14 | 3.7 | 3.52 | 1.91 | 1.52 | 25 |
| M6 | 1.0 | 12 | 11.57 | 4.6 | 4.3 | 2.42 | 2.02 | 30 |
| M8 | 1.25 | 16 | 15.57 | 6 | 5.7 | 3.18 | 2.79 | 45 |

Black torx button head screws are ideal for applications that require high-strength fasteners. This black torx screw is ideal for the manufacture of circuit boards, automobiles, aircraft and other mechanical equipment requiring high strength and high aviation standards. With accurate dimensions and robust construction, they can easily handle the environmental requirements of high pressure and temperature.
1. Button head screws are three times stronger than standard steel button head torx screws.
2. Torx screws length is measured from under the head.
2. Black-oxide alloy steel screws are mildly corrosion resistant in dry environments.
3. High resistant to withdrawal & bending.
4. Widely utilized in many different areas, including building, engineering, manufacturing, and assembly.

1. Strict control
2. Rapid production
3. Rapid delivery

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