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Carbon steel 4.8/8.8/10.9 M4 galvanized customized double rod fastener knurled bamboo screw.
| Category | Non-standard screws | Head type | Cheese head |
|---|---|---|---|
| Slot Type | NO | Thread size | M8 |
| Screw length | 3~110 mm Available | Surface | Galvanized |
| Material Grade | Carbon Steel 45H | Product Grade | Class A |
Mechanical screws feature a small, uniform pitch, generally used to fasten metal and machine parts. Application range includes:








Our products meet international quality systems such as ANSI and BS. We provide professional fasteners for construction steel, automotive, machinery, energy, and railway sectors. Throughout the production process, professional engineers monitor quality to guarantee excellence. We are committed to innovation, providing qualified parts and competitive pricing to meet customer requirements.



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