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Name: Expansion Bolt / Coil Nails / Spring Plunger / Fastener
Available Materials: Stainless steel, carbon steel, brass, and iron.
Thread Options: BSPT, NPT, DIN (ISO7/1, DIN 2999, ANSI B1.20.1)
Applications Range: Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc.



Professional factory with 17 years of experience in hydraulic fittings, hose fittings, and machine accessories.



| NO. | Equipment Name | Quantity (set) |
|---|---|---|
| 1 | CNC Machine | 60 |
| 2 | Meter Lathe | 80 |
| 3 | Bench Drilling Machine | 25 |
| 4 | Screw Rolling Machine | 4 |
| 5 | Centerless Grinding Machine | 5 |
| 6 | Milling Machine | 5 |
| 7 | Tapping Machine | 5 |
| 8 | Punching Machine | 3 |
| 9 | Ultrasonic Cleaning Machine | 1 |