Dongguan Guanbiao Hardware Products Co., LTD
| Payment Terms | T/T |
| Supply Ability | 2000000Pcs/day |
| Delivery Time | 15-20work days |
| Packaging Details | Carton + cardboard |
| DIMENSION | WE CAN CUSTOMISE TO YOUR DIMENSION |
| USE | This type of screw is usually used in occasions that require aesthetics and anti disassembly, such as electronic products, furniture assembly, etc. |
| HEAD STYLE | Phillips |
| FINISH | Zinc-Nickel Alloy |
| SIZE | M2.5*6 |
| MATERIAL | carbon steel |
| THREAD | M2.5 |
| SINGLE | 0.3g/pcs |
| HEAD TYPE | Pan Head |
| LEAD TIME | 10~15 working days |
| TOOTH LENGTH | 6mm |
| Brand Name | guanbiao |
| Model Number | M2.5*6 |
| Certification | ISO9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 2000000Pcs/day |
| Delivery Time | 15-20work days | Packaging Details | Carton + cardboard |
| DIMENSION | WE CAN CUSTOMISE TO YOUR DIMENSION | USE | This type of screw is usually used in occasions that require aesthetics and anti disassembly, such as electronic products, furniture assembly, etc. |
| HEAD STYLE | Phillips | FINISH | Zinc-Nickel Alloy |
| SIZE | M2.5*6 | MATERIAL | carbon steel |
| THREAD | M2.5 | SINGLE | 0.3g/pcs |
| HEAD TYPE | Pan Head | LEAD TIME | 10~15 working days |
| TOOTH LENGTH | 6mm | Brand Name | guanbiao |
| Model Number | M2.5*6 | Certification | ISO9001 |
| Place of Origin | China | ||
| High Light | Ultimate Precision Self-Tapping Screws ，Electronics Self-Tapping Screws ，Zinc-Nickel Alloy Self-Tapping Screws | ||
Phillips Pan Head Screw Main advantages:
MICRO PRECISION - Manufactured using precision CNC machining with micron tolerances (±0.02mm) ensuring a perfect fit on precision electronic components.
PREMIUM MATERIALS - Aerospace grade alloys (Stainless Steel 304, 316L, Aluminum, Titanium Ti-6Al-4V) with anti-corrosion coating and EMI shielding properties.
| Property | Description |
|---|---|
| Material | Stainless Steel,carbon steel |
| Size | M1.0-M20 |
| Head Type | Pan, Flat, Round, Hex |
| Drive Type | Phillips, Slotted, Torx |
| Thread Type | Machine, Self-Tapping |
| Finish | Plain, Zinc Plated, Black Oxide,Zinc-Nickel Alloy |
| Length Range | 2.0mm-300.0mm |
| Application | Electronics, Medical Devices, Watches |
| Tolerance | +/- 0.001 inch |
| Certification | RoHS, ISO 9001:2015 |
| Customization | Available upon request |
Vibration Resistance - Patent-pending thread geometry reduces loosening under 50G vibration (MIL-STD-202H certified).
Without additional treatments: Baseline zinc-nickel alloy coating (Zn-Ni 12-15%) remains stable at ≤120°C
Failure mechanisms:
>150°C: Coating grain structure coarsens, reducing corrosion resistance
>200°C: Microcracks form due to CTE mismatch between coating and substrate (e.g., steel, ~30% difference)
250°C: Coating hardness drops by 40% (from 450 HV to 270 HV)
| Treatment | Temperature Limit Boost | Core Mechanism | Typical Applications |
|---|---|---|---|
| Micro-arc Oxidation (MAO) | 300-350°C | Al₂O₃ ceramic layer (10-30μm thick) | Turbocharger fasteners |
| PVDF Coating | 200-220°C | Heat-resistant polymer modification | PV inverter housings |
| Nickel Sealing | 180°C | Coating porosity reduced to <0.1% | Marine electronics |
| Graphene Composite Plating | 250°C (short-term) | Coating thermal conductivity ↑80 W/m·K | 5G base station cooling modules |
Material compatibility:
Avoid direct contact with aluminum alloys (CTE=23.6); use Invar alloy (CTE=1.6) spacers
Torque attenuation compensation:
Reduce preload by 15% per 100°C rise (per VDI 2230 standard)
Hydrogen embrittlement risk:
Post-plating baking at 200-220°C for 4 hours (to relieve residual stress)
| Parameter | MAO Zn-Ni Screw (Steel Substrate) | Stainless Steel 316L |
|---|---|---|
| Max Temperature | 350°C | 800°C |
| Salt Spray Test (hours) | 2000+ | 500 |
| Electrical Conductivity | Insulating (>10¹² Ω·cm) | Conductive |
| Cost Increase | +40% vs. standard Zn-Ni | Baseline |
For >350°C:
Inconel 718 with aluminum coating (950°C resistance, high cost)
Ceramic screws (Al₂O₃/Si₃N₄, 1600°C resistance but brittle)
Cost-performance balance:
Dual-layer coating: Zn-Ni base + PVD CrN coating (450°C resistance)
Surface-treated zinc-nickel alloy screws achieve 120-350°C practical temperature resistance (process-dependent), but they remain medium-temperature solutions. For long-term >300°C or thermal cycling scenarios, advanced material systems are recommended. Would you like further optimization of design parameters?
Company Details
Business Type:
Manufacturer
Year Established:
2013
Total Annual:
1000000-3000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
Dongguan Guanbiao Hardware Products Co., Ltd., established in 2013, is a screw hardware processing factory integrating R & D, production and sales, focusing on electronic and electrical appliances, computer radiator, communication equipment, lighting, motor, motor, medical equipment, sports equi... Dongguan Guanbiao Hardware Products Co., Ltd., established in 2013, is a screw hardware processing factory integrating R & D, production and sales, focusing on electronic and electrical appliances, computer radiator, communication equipment, lighting, motor, motor, medical equipment, sports equi...
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