M3 Black Plastic Screws Round Head Cross Drive For Electronics
Head : Round
Point : Flat
Drive : PH2
Thread : Full Fine
Pitch : 0.5
Plastic round head micro screws are made from plastic PC
(Polycarbonate ) apparent material with good fire resistance .
Plastic PC round head screws are a good choice for items that with
high tensile strength and fireproof and light transmittance
requests as individual performances .
|Density ( g/cm3)||1.2|
|Water absorption %||0.1～0.15|
|Tensile strength MPa||103|
|Compressive strength at 20% tension kgf/mm2||80|
|Elongation at break %||3|
|Bending strength MPa||165|
|Modulus of elasticity for bending MPa||8270|
|Notched Impact Strength MPa(kgf/mm)||110|
|Modulus of elasticity for tension MPa||2280|
|Heat distortion temperature ℃||115～127|
|coefficient of linear expansion k||0.00007|
|Normal working temperature ℃||110～130|
|Brittle temperature ℃||-100|
|Melting temperature ℃||130|
|Pyrogenic decomposition temperature ℃||350|
|Specific volume resistance Ω·cm||1E + 18|
|Heat conduction W/m.K||0.13～0.2|
Class for Fire Resistance
Environment Friendly Standard
RoHS and REACH
All sizes are in millimeter
Normal tolerances for plastic round head screws based on your
requests and refer to ISO 2768 standard for unspecified tolerances
All sizes are in millimeter
High resistant impact
Perfect electrical performance
Odorless with environment protection
Generally , it is 0.1%~0.2%
Refractivity is 1.578 based on ISO 489 standard
Good thermal stability
Plastic PC round head screws can work in -100℃ to 130℃
The grade for fire resistance is UL94V-0 without any additive
Hard with good elongation
Perfect apparent performance
Transparency is up to 90% .
Resistance to corrosion
Resistant to acid , salty , oil and alcohol .
Wide working temperature
Plastic PC round head screws can be operated from -100℃ to 130℃ and
brittle temperature below -100℃
As outstanding performances , Plastic PC round head micro screws
are widely used to various fields in industry especially for fields
with high tensile strength and hard working conditions .
▲ Car industry
▲ Household appliances
▲ Official equipments
▲ High level toys
▲ Precise electrics
▲ Petro industry
▲ Technology and research device
What working temperature for plastic PC micro screws ?
Plastic PC micro screws are available for -100℃ to 130℃ .
Is there any use attention for PC micro screws ?
PC micro screws are not resistant Dilute alkalis , concentrated
acid , methylene halide , dichloroethane and cresol .
If PC micro screws are used to where with much ultraviolet , should
to be added ultraviolet absorbent .
Can you provide samples before place order ?
Yes , free charge for samples .
How many days for delivery ?
Normally , one week for standard specifications .
Can you make customized plastic screws ?
We can , and we are in this field over 10 years with much