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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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