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Material: | PC | Fire Resistance: | UL 94V-2 |
---|---|---|---|
Hardness: | HB 15 | Standard: | ISO |
Thread Diameter: | M5 | Length: | 25 |
Drive: | PH + SLOT | Head: | Round |
Highlight: | screws and fasteners,hardware fasteners,M5 Plastic round head screws |
Clear Plastic Screws Round Head Fastener M5 Full Thread Slotted Cross Drive
Plastic round head screws are designed as phillips slot drive for multiple operation by a phillips drive screw driver bits or a slot driver screw driver bits ; Full threads to under head which makes screws are more good on secure .
Plastic round head screws are made from plastic PC (Polycarbonate ) material , apparent 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 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 | |
Hardness HR | 90 | |
Modulus of elasticity for tension MPa | 2280 | |
Thermal Performance | ||
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 | |
Electrical Performance | ||
Specific volume resistance Ω·cm | 1E + 18 | |
Heat conduction W/m.K | 0.13~0.2 | |
Dielectric constant | 3 | |
Max temperature ℃ | 350 |
Material
Plastic (Polycarbonate ) material
Class for Fire Resistance
UL94V-0
Environment Friendly Standard
RoHS and REACH
Specification
Thread diameter | d | M6 |
Thread length | L | 30 |
Head height | H | 4.5 |
Head diameter | D | 10.5 |
Drive | Standard | PH2 and SLOT |
Slot width | Standard | 1.5 |
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 diameter | M6 |
Thread length | ±0.5 |
Head height | ±0.1 |
Head diameter | ±0.1 |
Drive | PH2 and SLOT |
Slot width | ±0.1 |
All sizes are in millimeter
Features
1 , High resistant impact
2 , Perfect electrical performance
3 , Odorless with environment protection
4 , Low shrinkage
Generally , it is 0.1%~0.2%
5 , Stable dimensions
6 , High refractivity
Refractivity is 1.578 based on ISO 489 standard
7 , Good thermal stability
Plastic PC round head screws can work in -100℃ to 130℃
8 , Fine shininess
9 , Inhibiting bacterial
10 , Fire resistance
The grade for fire resistance is UL94V-0 without any additive
11 , Hard with good elongation
12 , Perfect apparent performance
Transparency is up to 90% .
13 , Good insulation
14 , Resistance to corrosion
Resistant to acid , salty , oil and alcohol .
15 , 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 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
Besides plastic PC screws , we are also manufacture various standard and customized screws with PA ,PP ,PMMA and ABS etc materials .
Contact Person: Mr. David
Tel: 86-769-82601418
Fax: 86-769-82601418