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1)Material; 65mn or 70# spring steel
2)Heat treatment; 400-500 HV
3)Finish; oxidization or zinc plated color steel
4)standard:Q430

| Item NO. | Screw size | A1 | d1 | W1 | C1 | E1 | G1 |
| THQCT60804 | M4 | 9.0 | 7.5 | 8.0 | 18.0 | 13.0 | 1.01 |
| THQCT60805 | M5 | 10.5 | 8.3 | 8.8 | 20.5 | 14.0 | 1.1 |
| THQCT60806 | M6 | 12.5 | 9.9 | 10.4 | 25.0 | 15.0 | 1.2 |
| THQCT60808 | M8 | 13.5 | 11.3 | 11.8 | 26.5 | 17.5 | 1.4 |
| THQCT60810 | M10 | 17.5 | 14.5 | 15.2 | 35.0 | 25.0 | 2.0 |
All sizes and material are available as customer requested, and we can also make them according to the drawings which customer provided.


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