VEDALI HARDWARE CO., LTD
VEDALI HARDWARE CO., LTD Professional Hardware Supplier Perfect Engineering Solutions
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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 .