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Ultimate Precision Screws For Electronics Zinc Nickel Alloy Phillips Pan Head Self-Tapping Screws

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Ultimate Precision Screws For Electronics Zinc Nickel Alloy Phillips Pan Head Self-Tapping Screws

Name: Ultimate Precision Screws For Electronics Zinc Nickel Alloy Phillips Pan Head SelfTapping Screws
Brand: guanbiao
Price: 1 USD

Quality Ultimate Precision Screws For Electronics Zinc Nickel Alloy Phillips Pan Head Self-Tapping Screws for sale

Brand Name : guanbiao

Model Number : M2.5*6

Certification : ISO9001

Place of Origin : China

MOQ : 20000PCS

Price : USD

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

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Phillips Pan Head Screw M2.5X6 Zinc Nickel Alloy

Ultra-Precision Electronic Screws: Engineering Excellence for Micro-Scale Applications Advanced Fastening Solutions for the Technology-Driven World

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).

1. Thermal Stability of Conventional Zinc-Nickel Electroplated Screws

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)

2. Enhanced Surface Treatments and Thermal Stability Improvements

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

3. Critical Considerations for High-Temperature Environments

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)

4. Performance Comparison (MAO-Treated Zn-Ni Screws vs. Stainless Steel)

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

5. Alternative Recommendations

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)

Ultimate Precision Screws Summary

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?

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