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M3 Black Plastic Screws Round Head Cross Drive For Electronics

Categories Fastener Screws
Brand Name: VDL
Model Number: PCSM0305
Certification: ISO
Place of Origin: China
MOQ: Negotiation
Price: Negotiation
Payment Terms: L/C, T/T, Western Union , Paypal
Supply Ability: 500 . 000 pcs per month
Delivery Time: 30 days
Packaging Details: 30000 pcs each carton in bulk with dimension 20 X 22 X 25 cm , 500 cartons to a 20 ft container
Material: PC
Fire Resistance: UL 94V-0
Hardness: HB 15
Thread Diameter: M3
Length: 5
Drive: PH
Head: Round
Point: Flat
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    M3 Black Plastic Screws Round Head Cross Drive For Electronics


    M3 Black Plastic Screws Round Head Cross Drive For Electronics


    General construction


    Head : Round


    Point : Flat


    Drive : PH2


    Thread : Full Fine


    Pitch : 0.5


    Material


    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 .


    Physical Performance


    Density ( g/cm3)1.2
    Water absorption %0.1~0.15
    Shrinkage %0.1~0.2

    Mechanical Property


    Tensile strength MPa103
    Compressive strength at 20% tension kgf/mm280
    Elongation at break %3
    Bending strength MPa165
    Modulus of elasticity for bending MPa8270
    Notched Impact Strength MPa(kgf/mm)110
    Hardness HR90
    Modulus of elasticity for tension MPa2280

    Thermal Performance


    Heat distortion temperature ℃115~127
    coefficient of linear expansion k0.00007
    Normal working temperature ℃110~130
    Brittle temperature ℃-100
    Melting temperature ℃130
    Pyrogenic decomposition temperature ℃350

    Electrical Performance


    Specific volume resistance Ω·cm1E + 18
    Heat conduction W/m.K0.13~0.2
    Dielectric constant3

    Class for Fire Resistance


    UL94V-0


    Environment Friendly Standard


    RoHS and REACH


    Specification



    Thread diameterDM3
    Thread lengthL5
    Head heightH2.5
    Head diameterdk6.0
    DriveStandardPH2

    All sizes are in millimeter


    Tolerance


    Normal tolerances for plastic round head screws based on your requests and refer to ISO 2768 standard for unspecified tolerances .


    Thread diameterM3
    Thread length±0.2
    Head height±0.1
    Head diameter±0.1
    DrivePH2

    All sizes are in millimeter


    Features


    High resistant impact


    Perfect electrical performance


    Odorless with environment protection


    Low shrinkage

    Generally , it is 0.1%~0.2%


    Stable dimensions


    High refractivity

    Refractivity is 1.578 based on ISO 489 standard


    Good thermal stability

    Plastic PC round head screws can work in -100℃ to 130℃


    Fine shininess


    Inhibiting bacterial


    Fire resistance

    The grade for fire resistance is UL94V-0 without any additive


    Hard with good elongation


    Perfect apparent performance

    Transparency is up to 90% .


    Good insulation


    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℃


    Applications


    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

    ▲ Aerospace

    ▲ Petro industry

    ▲ Technology and research device


    RFQs


    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 experiences .


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