Flat Head White Nylon Screw M6 Cross Recessed Plastic Fastener
Standard cross recessed flat head screws are made from plastic nylon with fire resistance class UL94V-2 , flat point design and full threads to secure working pieces .
Typical features
Low friction and good self-lubricant for a long service
Wide working temperature from -30℃ to 150℃ for the most areas with different climate .
Colorful choices for many demands
Assorted sizes with customized designs for your suitable requirements .
Material
Plastic cross recessed flat head screws are made from nylon PA 66 that with good performances .
Physical Performance
| Density ( g/cm3) | 1.14 |
| Water absorption % | 3 |
| Shrinkage % | 1～2 |
Mechanical Property
| Tensile strength MPa | 60～80 |
| Elongation at break % | 2.2 |
| Bending strength MPa | 100～120 |
| Modulus of elasticity for bending MPa | 2000 ～3000 |
| Notched Impact Strength(J/m) | 60～100 |
| HR hardness | 118 |
Electrical Performance
| Dielectric constant | 1.63 |
| Arc resistance sec | 130～140 |
| Specific volume resistance Ω·cm | 1.83×1015 |
| dissipation factor | 100～400 |
| Dielectric strength(kV/mm) | 20～30 |
Thermal Performance
| Normal working temperature ℃ | 80～120 |
| Brittle temperature ℃ | -30℃ |
| Melting temperature ℃ | 252 |
| Pyrogenic decomposition temperature ℃ | 350℃ |
| Matin heatproof ℃ | 50～60 |
Specification
Plastic cross recessed flat head screws are based on DIN 965 .
| Thread diameter | M6 |
| Thread length | 35 |
| Head height | 3.2 |
| Head diameter | 10.5 |
| Socket | PH 2 |
All sizes are in millimeter
Tolerances
General size tolerances are ±0.1 – 0.2 mm , and according to ISO 2768 for unmarked tolerances .
| Thread diameter D | M6 |
| Thread length L | 35 |
| Head height K | 3 |
| Head diameter dk | 11 |
All sizes are in millimeter
Characteristics
Wear resistance
Plastic cross recessed flat head screws has a higher hardness 118 after improved chemical elements .
Good self-lubricant
Self lubricant make plastic cross recessed flat head screws are more resistant wear and a longer service .
High mechanical property
Resistant high temperature
Normally , plastic cross recessed flat head screws can be operated smoothly at temperature 150℃ and thermal deformed temperature is up to 250℃ when parts with glass fiber .
Perfect elongation
Elongation at break is 2.2% according to ISO 527 testing method .
Corrosion resistance
Plastic cross recessed flat head screws can be resistant of the most chemicals on corrosion .
Good insulation
Specific volume resistance is 1.83×1015 and resistance to high breakdown voltage support part to be good insulated .
Resistant impact
60 – 80 KJ/M2 normally .
Resistant fire
Generally , the fire resistance is UL94V-2 and UL64V-0 for special parts .
Resistance to low temperature
Plastic cross recessed flat head screws can be workable at -30℃
Environment friendly
Plastic cross recessed flat head screws meet RoHS or REACH environmental production standard .
Application
Plastic cross recessed flat head screws are widely used to various fields that with light load and strict conditions on corrosion resistance and insulation as perfect features .
1 , Car industry
2 , Household appliances
3 , Official equipments
4 , Toy items
5 , Electrics
6 , Aerospace
7 , Sports equipments
8 , Technology and research device
More Specifications
Normally , plastic cross recessed flat head screw specification from M2.5 to M10 .
| D | M2.5 | M3 | M3.5 | M4 | M5 | M6 | M8 | M10 |
| dk | 4.7 | 5.6 | 6.5 | 7.5 | 9.2 | 11 | 14.5 | 18 |
| K | 1.5 | 1.65 | 1.93 | 2.2 | 2.5 | 3 | 4 | 5 |
D : diameter
dk : head diameter
K : head height
Product Tags:
|
|
Flat Head White Nylon Screw M6 Cross Recessed Plastic Fastener Images
|
