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Hexagon socket flat head cap screws
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Hexagon socket flat head cap screws
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- - A2-70 Range bolt
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- - Hexagon head screws
- - Heavy hex screw
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- - Hexagon socket thin head cap screws
- - Hexagon socket flat head cap screws
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Hexagon socket flat head cap screws KS B ISO 10642
| Strength | 12.9 | Sten |
|---|---|---|
| Quality | SCM435 | STS304 |
| Hardness | 39 ~ 44 | - |
| Remarks | a full screw / Black oxide / Nickel plating | a full screw / Washing |
Standard (KS B ISO 10642)
| the title of screw(d) | the pitch of a screw(P) | ds | dk | k | s | t | w | da | r | e | Max | Min | theoretical value Max |
Actual value Min |
Max | Min | Max1 | Max2 | Min | Min | Min | Max | Min | Min |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M3 | 0.5 | 3 | 2.86 | 6.72 | 5.54 | 1.86 | 2 | 2.045 | 2.060 | 2.020 | 1.1 | 0.25 | 3.3 | 0.1 | 2.3 |
| M4 | 0.7 | 4 | 3.82 | 8.96 | 7.53 | 2.48 | 2.5 | 2.56 | 2.58 | 2.52 | 1.5 | 0.45 | 4.4 | 0.2 | 2.87 |
| M5 | 0.8 | 5 | 4.82 | 11.20 | 9.43 | 3.10 | 3 | 3.071 | 3.080 | 3.020 | 1.9 | 0.66 | 5.5 | 0.2 | 3.44 |
| M6 | 1 | 6 | 5.82 | 13.44 | 11.34 | 3.72 | 4 | 4.084 | 4.095 | 4.020 | 2.2 | 0.7 | 6.6 | 0.25 | 4.58 |
| M8 | 1.25 | 8 | 7.78 | 17.92 | 15.24 | 4.96 | 5 | 5.084 | 5.140 | 5.020 | 3.0 | 1.16 | 8.54 | 0.40 | 5.72 |
| M10 | 1.5 | 10 | 9.78 | 22.40 | 19.22 | 6.20 | 6 | 6.095 | 6.140 | 6.020 | 3.6 | 1.62 | 10.62 | 0.40 | 6.86 |
| M12 | 1.75 | 12 | 11.73 | 26.88 | 23.12 | 7.44 | 8 | 8.115 | 8.175 | 8.025 | 4.3 | 1.8 | 13.5 | 0.60 | 9.15 |
| M14 | 2 | 14 | 13.73 | 30.80 | 26.52 | 8.40 | 10 | 10.115 | 10.175 | 10.025 | 4.5 | 1.62 | 15.5 | 0.60 | 11.43 |
| M16 | 2 | 16 | 15.73 | 33.60 | 29.01 | 8.80 | 10 | 10.115 | 10.175 | 10.025 | 4.8 | 2.2 | 17.5 | 0.60 | 11.43 |
| M20 | 2.5 | 20 | 19.67 | 40.32 | 36.05 | 10.16 | 12 | 12.142 | 12.212 | 12.032 | 5.6 | 2.2 | 22.0 | 0.80 | 13.72 |
Mechanical Property
Hexagon socket flat head cap screws may not satisfy the minimum tensile load of the strength category specified in ISO 898-1 due to the shape of the head.
Except for the minimum tensile load, other requirements must satisfy the conditions of ISO 898-1.
Minimum tensile load of Hexagon socket flat head cap screws with strength 12.9
(Apply 80% of minimum tensile load of SO898-1.)
| the title of a screw(d) | M3 | M4 | M5 | M6 | M8 | M10 | M12 |
|---|---|---|---|---|---|---|---|
|
Minimum tensile load (N) |
4 190 | 8 560 | 13 800 | 19 600 | 35 700 | 56 600 | 82 400 |
| the title of a screw(d) | M14 | M16 | M18 | M20 | M22 | M24 | |
|
Minimum tensile load (N) |
112 000 | 154 000 | 187 000 | 239 000 | 296 000 | 345 000 |
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